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  <description>Our podcast offers irreverent stories and introduces intriguing personalities from the world of science. For more content from the producers of NOVA scienceNOW -- and to watch our broadcast series online -- visit us at http://www.pbs.org/nova/sciencenow</description>
  <itunes:subtitle>Science Candy</itunes:subtitle>
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<item><title>Did Bugs Do In the Dinos?</title><description>Did a massive asteroid kill off the dinosaurs?  Maybe not. Entomologist George Poinar thinks something much smaller might have done the job.

Podcast produced by David Levin. Interview by Terri Randall. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our website at pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/483005948" height="1" width="1"/&gt;</description><pubDate>Fri, 12 Dec 2008 15:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/483005948/novasciencenow-20081212.mp3</link><guid isPermaLink="false">nova-podcast-20081212-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Did a massive asteroid kill off the dinosaurs? Entomologist George Poinar thinks something much smaller might have done the job.</itunes:subtitle><itunes:summary>Did a massive asteroid kill off the dinosaurs?  Maybe not. Entomologist George Poinar thinks something much smaller might have done the job.

Podcast produced by David Levin. Interview by Terri Randall. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our website at pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science NOVA scienceNOW NOW PBS Poinar bugs dinosaur extinction insects parasites</itunes:keywords><itunes:duration>5:26</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20081212.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20081212.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/483005948/novasciencenow-20081212.mp3" length="2014388" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20081212.mp3</feedburner:origEnclosureLink></item>
<item><title>Finding Other Earths</title><description>The Kepler Space Telescope, which is scheduled to launch in 2009, may help astronomers find other earth-like planets for the first time. 

Podcast produced by David Levin. Interviews by Julia Cort. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/452238954" height="1" width="1"/&gt;</description><pubDate>Thu, 13 Nov 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/452238954/novasciencenow-20081113.mp3</link><guid isPermaLink="false">nova-podcast-20081113-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>When the Kepler Space Telescope launches in 2009, astronomers might finally be able to spot other earth-like planets.</itunes:subtitle><itunes:summary>The Kepler Space Telescope, which is scheduled to launch in 2009, may help astronomers find other earth-like planets for the first time. 

Podcast produced by David Levin. Interviews by Julia Cort. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by ExxonMobil, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science NOVA scienceNOW NOW PBS astronomy Kepler Space Telescope Charbonneau Marcy Kaltenegger</itunes:keywords><itunes:duration>4:53</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20081113.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20081113.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/452238954/novasciencenow-20081113.mp3" length="1836153" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20081113.mp3</feedburner:origEnclosureLink></item>
<item><title>Smart Birds</title><description>Some parrots can talk-but can they really understand what they're saying?
In this podcast, researcher Irene Pepperberg describes her cognitive experiments with African grey parrots, and discusses why the line between human and animal intelligence is sometimes blurry.

Produced by David Levin. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/408564233" height="1" width="1"/&gt;</description><pubDate>Wed, 1 Oct 2008 16:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/408564233/novasciencenow-20081001.mp3</link><guid isPermaLink="false">nova-podcast-20081001-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Some parrots can talk-but can they really understand what they're saying?</itunes:subtitle><itunes:summary>Some parrots can talk-but can they really understand what they're saying?
In this podcast, researcher Irene Pepperberg describes her cognitive experiments with African grey parrots, and discusses why the line between human and animal intelligence is sometimes blurry.

Produced by David Levin. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science NOVA PBS NOW Pepperberg Alex parrot cognition intelligence animal</itunes:keywords><itunes:duration>6:52</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20081001.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20081001.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/408564233/novasciencenow-20081001.mp3" length="2564639" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20081001.mp3</feedburner:origEnclosureLink></item>
<item><title>Tiny Black Holes</title><description>CERN's massive particle collider in Geneva, Switzerland, may create tiny black holes when it goes online-hopefully-in 2008. Not to worry, though: In this podcast, physicist Dave Wark explains that there's no way these can destroy the world. 

This podcast was produced by David Levin. Interview with Dave Wark by Rima Chaddha. NOVA is produced by WGBH in Boston. Major funding for NOVA is provided by The DOW Chemical Company, the Corporation for Public Broadcasting, and public television viewers. Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

To learn more, visit www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/404124187" height="1" width="1"/&gt;</description><pubDate>Fri, 26 Sep 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/404124187/novasciencenow-20070706-2.mp3</link><guid isPermaLink="false">nova-podcast-20070706-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Manufacturing black holes isn't as dangerous as it sounds.</itunes:subtitle><itunes:summary>CERN's massive particle collider in Geneva, Switzerland, may create tiny black holes when it goes online-hopefully-in 2008. Not to worry, though: In this podcast, physicist Dave Wark explains that there's no way these can destroy the world. 

This podcast was produced by David Levin. Interview with Dave Wark by Rima Chaddha. NOVA is produced by WGBH in Boston. Major funding for NOVA is provided by The DOW Chemical Company, the Corporation for Public Broadcasting, and public television viewers. Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

To learn more, visit www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, WGBH, PBS, scienceNOW, NOW, Dave Wark, CERN, LHC, Large Hadron Collider, black hole, physics, particle physics, exploration, atom</itunes:keywords><itunes:duration>2:54</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20070706-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20070706-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/404124187/novasciencenow-20070706-2.mp3" length="1096216" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20070706-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Everything Bites</title><description>Mark Siddall, a.k.a. Dr. Leech, says that while searching for the giant Amazonian leech, bloodsucking creatures were the least of his problems.  

Produced by David Levin. Interview conducted by Peter Tyson. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/374617109" height="1" width="1"/&gt;</description><pubDate>Mon, 25 Aug 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/374617109/novasciencenow-20080825.mp3</link><guid isPermaLink="false">nova-sciencenow-20080825-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Leech expert Mark Siddall has met with some, well, interesting challenges while searching for new specimens in the Amazon.</itunes:subtitle><itunes:summary>Mark Siddall, a.k.a. Dr. Leech, says that while searching for the giant Amazonian leech, bloodsucking creatures were the least of his problems.  

Produced by David Levin. Interview conducted by Peter Tyson. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science NOVA scienceNOW NOW PBS leeches leech Siddall French Guyana Amazon </itunes:keywords><itunes:duration>3:58</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080825.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080825.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/374617109/novasciencenow-20080825.mp3" length="1477948" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080825.mp3</feedburner:origEnclosureLink></item>
<item><title>Engineering Fiction</title><description>Engineer Karl Iagnemma of MIT talks to NOVA scienceNOW's Susan Lewis about his dual life as a roboticist and award-winning fiction author. 

Produced by Susan K. Lewis. Audio editing by David Levin. Interview conducted by Susan Lewis. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/370390514" height="1" width="1"/&gt;</description><pubDate>Wed, 20 Aug 2008 19:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/370390514/novasciencenow-20060811-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20060811-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Engineer Karl Iagnemma discusses his dual life as researcher and fiction author.</itunes:subtitle><itunes:summary>Engineer Karl Iagnemma of MIT talks to NOVA scienceNOW's Susan Lewis about his dual life as a roboticist and award-winning fiction author. 

Produced by Susan K. Lewis. Audio editing by David Levin. Interview conducted by Susan Lewis. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, now, PBS, robotics, robots, Karl, Iagnemma, fiction, writing, romantic, scientists</itunes:keywords><itunes:duration>6:15</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20060811-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20060811-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/370390514/novasciencenow-20060811-2.mp3" length="2324693" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20060811-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Wired for Weight</title><description>In this podcast, NOVA scienceNOW correspondent David Duncan talks to Dr. Jeffrey Friedman of Rockefeller University about the connection between genetics and obesity.  

Audio editing by David Levin. Produced by Dean Irwin. Interview conducted by David Duncan. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/368413262" height="1" width="1"/&gt;</description><pubDate>Mon, 18 Aug 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/368413262/novasciencenow-20060320-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20060320-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Dr. Jeffrey Friedman of Rockefeller University explains the connection between genetics and obesity.</itunes:subtitle><itunes:summary>In this podcast, NOVA scienceNOW correspondent David Duncan talks to Dr. Jeffrey Friedman of Rockefeller University about the connection between genetics and obesity.  

Audio editing by David Levin. Produced by Dean Irwin. Interview conducted by David Duncan. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, WGBH, PBS, sciencenow, now, obesity, diet, weight, fat, genetics, Friedman, Rockefeller</itunes:keywords><itunes:duration>5:37</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20060320-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20060320-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/368413262/novasciencenow-20060320-2.mp3" length="2084606" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20060320-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Mother of All Extinctions</title><description>NOVA scienceNOW producer Joe McMaster asks our series host, Neil deGrasse Tyson, why everyone should know about the Permian extinction. 

Produced by Susan K. Lewis. Audio editing by David Levin. Interview conducted by Joe McMaster. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/364146837" height="1" width="1"/&gt;</description><pubDate>Wed, 13 Aug 2008 16:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/364146837/novasciencenow-20061115-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20061115-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Why should we care about a great biotic wipeout 250 million years ago?</itunes:subtitle><itunes:summary>NOVA scienceNOW producer Joe McMaster asks our series host, Neil deGrasse Tyson, why everyone should know about the Permian extinction. 

Produced by Susan K. Lewis. Audio editing by David Levin. Interview conducted by Joe McMaster. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, Neil deGrasse Tyson, extinction, Permian</itunes:keywords><itunes:duration>1:46</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20061115-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20061115-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/364146837/novasciencenow-20061115-2.mp3" length="677911" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20061115-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Extinction Happens</title><description>NOVA scienceNOW producer Julia Cort talks to MIT geologist Sam Bowring about a mass extinction at the end of the Permian period and discusses whether it could happen again. 

Audio editing by David Levin. Produced by Susan K. Lewis. Interview with Sam Bowring conducted by Julia Cort. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/362292451" height="1" width="1"/&gt;</description><pubDate>Mon, 11 Aug 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/362292451/novasciencenow-20061108-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20061108-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>MIT geologist Sam Bowring discusses the biggest extinction Earth has ever seen.</itunes:subtitle><itunes:summary>NOVA scienceNOW producer Julia Cort talks to MIT geologist Sam Bowring about a mass extinction at the end of the Permian period and discusses whether it could happen again. 

Audio editing by David Levin. Produced by Susan K. Lewis. Interview with Sam Bowring conducted by Julia Cort. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, Sam Bowring, MIT, geology, extinction, Permian</itunes:keywords><itunes:duration>5:19</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20061108-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20061108-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/362292451/novasciencenow-20061108-2.mp3" length="2245732" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20061108-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Longevity Gene</title><description>NOVA scienceNOW producer Chad Cohen describes a new study that may link longevity to a gene controlling a certain type of cholesterol. 

Produced by Chad Cohen and Lexi Krock. Audio editing by David Levin. Interviews conducted by Chad Cohen. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/358788824" height="1" width="1"/&gt;</description><pubDate>Fri, 8 Aug 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/358788824/novasciencenow-20070103-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20070103-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Is the key to longevity all in your genes?</itunes:subtitle><itunes:summary>NOVA scienceNOW producer Chad Cohen describes a new study that may link longevity to a gene controlling a certain type of cholesterol. 

Produced by Chad Cohen and Lexi Krock. Audio editing by David Levin. Interviews conducted by Chad Cohen. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, WGBH, PBS, scienceNOW, NOW, Nir Barzilai, genetics, genes, cholesterol, aging, age, medicine, longevity</itunes:keywords><itunes:duration>4:28</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20070103-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20070103-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/358788824/novasciencenow-20070103-2.mp3" length="1715768" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20070103-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Bacteria Unite!</title><description>Bonnie Bassler of Princeton University explains how bacteria can "talk" with one another, and even join together in coordinated efforts.  Scientists are beginning to see these microscopic creatures-once thought completely asocial-in a whole new way.

Podcast produced by Susan K. Lewis and edited by David Levin. Interview by Carla Denley. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/358778478" height="1" width="1"/&gt;</description><pubDate>Fri, 8 Aug 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/358778478/novasciencenow-20061222-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20061222-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Biologist Bonnie Bassler describes how bacteria are smarter than we think.</itunes:subtitle><itunes:summary>Bonnie Bassler of Princeton University explains how bacteria can "talk" with one another, and even join together in coordinated efforts.  Scientists are beginning to see these microscopic creatures-once thought completely asocial-in a whole new way.

Podcast produced by Susan K. Lewis and edited by David Levin. Interview by Carla Denley. NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, Bonnie Bassler, microbe, bacteria, quorum sensing, biology, genetics, Princeton</itunes:keywords><itunes:duration>2:57</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20061222-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20061222-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/358778478/novasciencenow-20061222-2.mp3" length="1112049" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20061222-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Cosmic Perspective: Happy Birthday, NASA</title><description>NOVA scienceNOW host and astrophysicist Neil deGrasse Tyson offers a birthday greeting to America's space agency. 

NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/350887546" height="1" width="1"/&gt;</description><pubDate>Wed, 30 Jul 2008 16:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/350887546/nova-a-20080730.mp3</link><guid isPermaLink="false">nova-podcast-20080730-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/logo-nova-podcast.jpg" /><itunes:subtitle>Neil deGrasse Tyson is the same age as NASA, and both have come a long way in 50 years. </itunes:subtitle><itunes:summary>NOVA scienceNOW host and astrophysicist Neil deGrasse Tyson offers a birthday greeting to America's space agency. 

NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science NOVA PBS scienceNOW now Neil deGrasse Tyson SETI cosmic perspective NASA</itunes:keywords><itunes:duration>2:15</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnova-a-20080730.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/nova-a-20080730.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/350887546/nova-a-20080730.mp3" length="839215" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/nova-a-20080730.mp3</feedburner:origEnclosureLink></item>
<item><title>Cosmic Perspective: Intelligent Life?</title><description>NOVA scienceNOW host and astrophysicist Neil deGrasse Tyson gives his "Cosmic Perspective" on what an alien civilization picking up radio signals from Earth might think.

NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/343538816" height="1" width="1"/&gt;</description><pubDate>Tue, 22 Jul 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/343538816/novasciencenow-20080722.mp3</link><guid isPermaLink="false">nova-sciencenow-20080722-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Would aliens perceive life on Earth as intelligent? Neil deGrasse Tyson gives his "cosmic perspective."</itunes:subtitle><itunes:summary>NOVA scienceNOW host and astrophysicist Neil deGrasse Tyson gives his "Cosmic Perspective" on what an alien civilization picking up radio signals from Earth might think.

NOVA is produced by WGBH in Boston. Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, scienceNOW, now, Neil deGrasse Tyson, SETI, cosmic perspective</itunes:keywords><itunes:duration>2:16</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080722.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080722.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/343538816/novasciencenow-20080722.mp3" length="853733" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080722.mp3</feedburner:origEnclosureLink></item>
<item><title>Eavesdropping on ET</title><description>Seth Shostak, senior astronomer for SETI, explains the organization's search for other intelligent life in the universe.

Podcast produced by David Levin. Interview by Andrea Kissack. 

NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

You can visit us online at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/342755288" height="1" width="1"/&gt;</description><pubDate>Tue, 22 Jul 2008 09:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/342755288/novasciencenow-20080229-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20080229-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Is anybody out there? Seth Shostak thinks so.</itunes:subtitle><itunes:summary>Seth Shostak, senior astronomer for SETI, explains the organization's search for other intelligent life in the universe.

Podcast produced by David Levin. Interview by Andrea Kissack. 

NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

You can visit us online at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, SETI, Seth Shostak, aliens, contact, extra terrestrial </itunes:keywords><itunes:duration>5:02</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080229-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080229-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/342755288/novasciencenow-20080229-2.mp3" length="1887865" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080229-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Leeches!</title><description>Mark Siddall, a leech expert at the American Museum of Natural History, wants to change how you think about nature's most notorious blood-suckers.

Podcast produced by David Levin. Original interview by Julia Cort.

NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/339274318" height="1" width="1"/&gt;</description><pubDate>Fri, 18 Jul 2008 13:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/339274318/novasciencenow-20071121-3.mp3</link><guid isPermaLink="false">nova-sciencenow-20071121-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Think of them as "worms with panache."</itunes:subtitle><itunes:summary>Mark Siddall, a leech expert at the American Museum of Natural History, wants to change how you think about nature's most notorious blood-suckers.

Podcast produced by David Levin. Original interview by Julia Cort.

NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers.

This material is based upon work supported by the National Science Foundation under Grant No. 0407101. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, leeches, leech, leeching, invertebrate, Mark Siddall, medicine</itunes:keywords><itunes:duration>5:12</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20071121-3.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20071121-3.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/339274318/novasciencenow-20071121-3.mp3" length="1932678" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20071121-3.mp3</feedburner:origEnclosureLink></item>
<item><title>Bridge Doctors</title><description>Structural engineer Michael Todd describes the state of bridge monitoring around the world.

Interview by Rima Chaddha. Edited by David Levin. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/335227348" height="1" width="1"/&gt;</description><pubDate>Mon, 14 Jul 2008 11:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/335227348/novasciencenow-20080714.mp3</link><guid isPermaLink="false">nova-sciencenow-20080714-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>How can we detect "sick" bridges before they collapse?</itunes:subtitle><itunes:summary>Structural engineer Michael Todd describes the state of bridge monitoring around the world.

Interview by Rima Chaddha. Edited by David Levin. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, bridges, collapse, structure, engineering, monitoring, disaster, infrastructure</itunes:keywords><itunes:duration>5:36</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080714.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080714.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/335227348/novasciencenow-20080714.mp3" length="2105924" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080714.mp3</feedburner:origEnclosureLink></item>
<item><title>Cosmic Perspective: Telescopes in Space</title><description>NOVA scienceNOW host Neil deGrasse Tyson gives his "Cosmic Perspective" on telescopes in space. 

Podcast produced by David Levin. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/329955189" height="1" width="1"/&gt;</description><pubDate>Tue, 8 Jul 2008 11:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/329955189/novasciencenow-20080708.mp3</link><guid isPermaLink="false">nova-sciencenow-20080708-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Neil deGrasse Tyson gives his "cosmic perspective" on telescopes in space.</itunes:subtitle><itunes:summary>NOVA scienceNOW host Neil deGrasse Tyson gives his "Cosmic Perspective" on telescopes in space. 

Podcast produced by David Levin. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, scienceNOW, now, Neil deGrasse Tyson, Hubble, telescope, cosmic perspective</itunes:keywords><itunes:duration>2:22</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080708.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080708.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/329955189/novasciencenow-20080708.mp3" length="898457" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080708.mp3</feedburner:origEnclosureLink></item>
<item><title>Doctor Q.</title><description>Dr. Alfredo Quinones-Hinojosa is a neurosurgeon and cancer researcher at Johns Hopkins School of Medicine in Baltimore, MD. In this podcast, hear the remarkable story of his career, which began as a migrant farm worker in southern California.

Podcast produced by David Levin. Interview by Robe Imbriano. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/328985271" height="1" width="1"/&gt;</description><pubDate>Mon, 7 Jul 2008 09:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/328985271/novasciencenow-20080124-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20080124-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Neurosurgeon Alfredo Quinones-Hinojosa's career didn't start in a hospital -- it began in a farm field.</itunes:subtitle><itunes:summary>Dr. Alfredo Quinones-Hinojosa is a neurosurgeon and cancer researcher at Johns Hopkins School of Medicine in Baltimore, MD. In this podcast, hear the remarkable story of his career, which began as a migrant farm worker in southern California.

Podcast produced by David Levin. Interview by Robe Imbriano. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, Alfredo Quinones-Hinojosa, brain cancer, neurosurgery, oncology, Johns Hopkins</itunes:keywords><itunes:duration>5:30</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080124-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080124-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/328985271/novasciencenow-20080124-2.mp3" length="2045313" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080124-2.mp3</feedburner:origEnclosureLink></item>
<item><title>To Test or Not to Test?</title><description>Dr. Arthur Caplan, director of the Center for Bioethics at the University of Pennsylvania, discusses the ethical issues raised by commercial genetic testing.

Podcast produced by David Levin. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/324384594" height="1" width="1"/&gt;</description><pubDate>Tue, 1 Jul 2008 16:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/324384594/novasciencenow-20080701.mp3</link><guid isPermaLink="false">nova-sciencenow-20080701-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Commercial DNA testing is now available, but is it a good idea? </itunes:subtitle><itunes:summary>Dr. Arthur Caplan, director of the Center for Bioethics at the University of Pennsylvania, discusses the ethical issues raised by commercial genetic testing.

Podcast produced by David Levin. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the Pfizer, the National Science Foundation, and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, genetics, DNA, Arthur Caplan, Snip, Chip</itunes:keywords><itunes:duration>7:17</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080701.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080701.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/324384594/novasciencenow-20080701.mp3" length="2685525" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080701.mp3</feedburner:origEnclosureLink></item>
<item><title>Rock Star Geneticist</title><description>Geneticist Pardis Sabeti does it all -- she finished a PhD while working her way through Harvard Medical School, wrote a computer algorithm that is now widely used for studying evolution, and even finds time to make music with her band, Thousand Days.

Podcast produced by David Levin. Original interview by Robe Imbriano. Music by Thousand Days. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/324384595" height="1" width="1"/&gt;</description><pubDate>Tue, 1 Jul 2008 16:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/324384595/novasciencenow-20071219-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20071219-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>When she's not finding new breakthroughs in the world of genetics, Pardis Sabeti finds time to rock out.</itunes:subtitle><itunes:summary>Geneticist Pardis Sabeti does it all -- she finished a PhD while working her way through Harvard Medical School, wrote a computer algorithm that is now widely used for studying evolution, and even finds time to make music with her band, Thousand Days.

Podcast produced by David Levin. Original interview by Robe Imbriano. Music by Thousand Days. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, Pardis Sabeti, genetics, Brode, Harvard Medical, DNA</itunes:keywords><itunes:duration>4:26</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20071219-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20071219-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/324384595/novasciencenow-20071219-2.mp3" length="1655272" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20071219-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Finding a Fake Van Gogh</title><description>NOVA scienceNOW's Dean Irwin discusses what he learned about this new computer technology while producing his story on digital art authentication.

Podcast produced by David Levin. Music by Jeff Allen. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/323441700" height="1" width="1"/&gt;</description><pubDate>Mon, 30 Jun 2008 14:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/323441700/novasciencenow-20080327-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20080327-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Can a computer tell the difference between a real Van Gogh painting and a forgery?</itunes:subtitle><itunes:summary>NOVA scienceNOW's Dean Irwin discusses what he learned about this new computer technology while producing his story on digital art authentication.

Podcast produced by David Levin. Music by Jeff Allen. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, Van Gogh, authentication, digital image, art, forgery, Dean Irwin </itunes:keywords><itunes:duration>6:12</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080327-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080327-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/323441700/novasciencenow-20080327-2.mp3" length="2284527" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080327-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Catching Forged Photos</title><description>In this podcast, Dartmouth College computer scientist Hany Farid discusses his work on mathematical and computational methods for spotting digital forgeries.

Podcast produced by David Levin. Interview by Rima Chaddha. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/320736452" height="1" width="1"/&gt;</description><pubDate>Tue, 24 Jun 2008 13:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/320736452/novasciencenow-20080624-2.mp3</link><guid isPermaLink="false">nova-sciencenow-20080624-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>When it comes to digital photos, seeing isn't always believing.</itunes:subtitle><itunes:summary>In this podcast, Dartmouth College computer scientist Hany Farid discusses his work on mathematical and computational methods for spotting digital forgeries.

Podcast produced by David Levin. Interview by Rima Chaddha. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, computers, digital, forensics, forgeries, Hany, Farid, Dartmouth</itunes:keywords><itunes:duration>5:12</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080624-2.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080624-2.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/320736452/novasciencenow-20080624-2.mp3" length="1954681" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080624-2.mp3</feedburner:origEnclosureLink></item>
<item><title>Finding Lost Memories</title><description>In this podcast, hear from MIT's Eric Lander and Li-Huei Tsai about new experiments that are exploring whether "lost" memories can be regained.

Podcast produced by David Levin. Interview by Betsey Arledge and Peter Standring. Music by www.animalhospital.com. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/316430472" height="1" width="1"/&gt;</description><pubDate>Fri, 20 Jun 2008 14:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/316430472/novasciencenow-20080411-03.mp3</link><guid isPermaLink="false">nova-sciencenow-20080411-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>In diseases like Alzheimer's, are forgotten memories gone for good?</itunes:subtitle><itunes:summary>In this podcast, hear from MIT's Eric Lander and Li-Huei Tsai about new experiments that are exploring whether "lost" memories can be regained.

Podcast produced by David Levin. Interview by Betsey Arledge and Peter Standring. Music by www.animalhospital.com. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, Alzheimer's, memory, Brode, Whitehead, MIT, Tsai, Lander, DNA</itunes:keywords><itunes:duration>5:42</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080411-03.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080411-03.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/316430472/novasciencenow-20080411-03.mp3" length="2412332" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080411-03.mp3</feedburner:origEnclosureLink></item>
<item><title>Cosmic Perspective: Dark Matter and Dark Energy</title><description>NOVA scienceNOW host Neil deGrasse Tyson gives his "Cosmic Perspective" on dark matter and dark energy. Podcast produced by David Levin. Music by www.animalhospitalmusic.com. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/311339690" height="1" width="1"/&gt;</description><pubDate>Fri, 13 Jun 2008 14:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/311339690/novasciencenow-20080613.mp3</link><guid isPermaLink="false">nova-sciencenow-20080613-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Neil deGrasse Tyson gives his "cosmic perspective" on dark matter and dark energy.</itunes:subtitle><itunes:summary>NOVA scienceNOW host Neil deGrasse Tyson gives his "Cosmic Perspective" on dark matter and dark energy. Podcast produced by David Levin. Music by www.animalhospitalmusic.com. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, scienceNOW, now, Neil deGrasse Tyson, dark matter, dark energy, cosmic, perspective</itunes:keywords><itunes:duration>2:17</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080613.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080613.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/311339690/novasciencenow-20080613.mp3" length="958776" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080613.mp3</feedburner:origEnclosureLink></item>
<item><title>Hands on Hubble</title><description>John Grunsfeld, an astronomer and astronaut, says that fixing the Hubble Space Telescope will be a delicate operation. In this podcast, he explains how astronauts will have to literally let their fingers do the walking when working on satellite -- and why the gloves of their space suits will play a major role in the mission's success.

Podcast produced by David Levin. Interview by Rush DeNooyer. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/303790342" height="1" width="1"/&gt;</description><pubDate>Tue, 3 Jun 2008 09:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/303790342/novasciencenow-20080603.mp3</link><guid isPermaLink="false">nova-sciencenow-20080603-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>While fixing the Hubble Space Telescope, astronauts will need to let their fingers do the walking. Literally.</itunes:subtitle><itunes:summary>John Grunsfeld, an astronomer and astronaut, says that fixing the Hubble Space Telescope will be a delicate operation. In this podcast, he explains how astronauts will have to literally let their fingers do the walking when working on satellite -- and why the gloves of their space suits will play a major role in the mission's success.

Podcast produced by David Levin. Interview by Rush DeNooyer. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, Hubble, NASA, space, telescope, Grunsfeld, STS-125, satellite, astronaut</itunes:keywords><itunes:duration>4:42</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080603.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080603.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/303790342/novasciencenow-20080603.mp3" length="1993466" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080603.mp3</feedburner:origEnclosureLink></item>
<item><title>Cosmic Perspective: Bad News and Uncertainty</title><description>NOVA scienceNOW host Neil deGrasse Tyson gives his "Cosmic Perspective" on bad news and uncertainty in science. Podcast produced by David Levin. Music by www.animalhospital.com. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/291818599" height="1" width="1"/&gt;</description><pubDate>Fri, 16 May 2008 14:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/291818599/novasciencenow-20080516.mp3</link><guid isPermaLink="false">nova-sciencenow-20080516-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Neil deGrasse Tyson gives his "cosmic perspective" on bad news and uncertainty in science.</itunes:subtitle><itunes:summary>NOVA scienceNOW host Neil deGrasse Tyson gives his "Cosmic Perspective" on bad news and uncertainty in science. Podcast produced by David Levin. Music by www.animalhospital.com. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, scienceNOW, now, Neil deGrasse Tyson, cosmic, perspective, uncertainty</itunes:keywords><itunes:duration>2:08</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080516.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080516.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/291818599/novasciencenow-20080516.mp3" length="887897" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080516.mp3</feedburner:origEnclosureLink></item>
<item><title>A Cosmic Enigma</title><description>Dark matter is a cosmic enigma. We can't see it or touch it -- so what is it? We asked MIT physicist Max Tegmark about the nature of this strange substance and why it remains so mysterious.

Produced by David Levin. Interview by Julia Cort. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/287047954" height="1" width="1"/&gt;</description><pubDate>Fri, 9 May 2008 15:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/287047954/novasciencenow-20070822-02.mp3</link><guid isPermaLink="false">nova-sciencenow-20070822-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Without dark matter, we wouldn't even be here.</itunes:subtitle><itunes:summary>Dark matter is a cosmic enigma. We can't see it or touch it -- so what is it? We asked MIT physicist Max Tegmark about the nature of this strange substance and why it remains so mysterious.

Produced by David Levin. Interview by Julia Cort. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, Max Tegmark, physics, astrophysics, astronomy, dark matter, universe, dark</itunes:keywords><itunes:duration>3:19</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20070822-02.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20070822-02.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/287047954/novasciencenow-20070822-02.mp3" length="1615894" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20070822-02.mp3</feedburner:origEnclosureLink></item>
<item><title>Asking Big Questions</title><description>Dr. Judah Folkman, a pioneer in the field of cancer research, passed away in January 2008. In this podcast, he describes how a high school chemistry teacher inspired him to think big, and make unlikely connections.

Podcast produced by David Levin. Music by The New You. Judah Folkman audio courtesy Oberlin College. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/282345177" height="1" width="1"/&gt;</description><pubDate>Fri, 2 May 2008 15:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/282345177/novasciencenow-20080502.mp3</link><guid isPermaLink="false">nova-sciencenow-20080502-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Renowned cancer researcher Judah Folkman learned to think outside the box when he was in high school.</itunes:subtitle><itunes:summary>Dr. Judah Folkman, a pioneer in the field of cancer research, passed away in January 2008. In this podcast, he describes how a high school chemistry teacher inspired him to think big, and make unlikely connections.

Podcast produced by David Levin. Music by The New You. Judah Folkman audio courtesy Oberlin College. NOVA is produced by WGBH in Boston.

Major funding for NOVA scienceNOW is provided by the National Science Foundation and the Howard Hughes Medical Institute. Additional funding is provided by the Alfred P. Sloan Foundation.

This material is based upon work supported by the National Science Foundation under Grant No. 0229297. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

For more fun science stories, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, scienceNOW, NOW, PBS, Judah Folkman, cancer, angiogenesis, tumor, Oberlin, commencement</itunes:keywords><itunes:duration>5:11</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080502.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080502.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/282345177/novasciencenow-20080502.mp3" length="3758940" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080502.mp3</feedburner:origEnclosureLink></item>
<item><title>Global Meltdown</title><description>Glaciologist Lonnie Thompson of Ohio State University discusses why we should worry about glaciers that are melting worldwide.

Podcast produced by David Levin. Music by Michael Potvin. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by David H. Koch, the Howard Hughes Medical Institute, and public television viewers.

For more scientist profiles, visit our Web site at http://www.pbs.org/nova/sciencenow&lt;img src="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~4/262694588" height="1" width="1"/&gt;</description><pubDate>Wed, 13 Feb 2008 17:00:00 -0500</pubDate><link>http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~3/262694588/novasciencenow-20080213.mp3</link><guid isPermaLink="false">nova-sciencenow-20080213-001</guid><itunes:author>WGBH Science Unit</itunes:author><itunes:image href="http://www.pbs.org/wgbh/nova/rss/media/nova_science_now.jpg" /><itunes:subtitle>Glaciologist Lonnie Thompson says that glaciers around the world are disappearing -- fast.</itunes:subtitle><itunes:summary>Glaciologist Lonnie Thompson of Ohio State University discusses why we should worry about glaciers that are melting worldwide.

Podcast produced by David Levin. Music by Michael Potvin. NOVA is produced by WGBH in Boston. Funding for NOVA is provided by David H. Koch, the Howard Hughes Medical Institute, and public television viewers.

For more scientist profiles, visit our Web site at http://www.pbs.org/nova/sciencenow</itunes:summary><itunes:keywords>science, NOVA, PBS, Lonnie Thompson, glaciers, global warming, climate change</itunes:keywords><itunes:duration>3:23</itunes:duration><itunes:explicit>no</itunes:explicit><feedburner:awareness>http://api.feedburner.com/awareness/1.0/GetItemData?uri=pbs/wgbh/nova/nsn-audio&amp;itemurl=http%3A%2F%2Fwww.pbs.org%2Fwgbh%2Fnova%2Frss%2Fnsnpodcast%2Fredir%2Fhttp%3A%2F%2Fwww-tc.pbs.org%2Fwgbh%2Fnova%2Frss%2Fmedia%2Fnovasciencenow-20080213.mp3</feedburner:awareness><feedburner:origLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080213.mp3</feedburner:origLink><enclosure url="http://feeds.pbs.org/~r/pbs/wgbh/nova/nsn-audio/~5/262694588/novasciencenow-20080213.mp3" length="1397331" type="audio/mpeg" /><feedburner:origEnclosureLink>http://www.pbs.org/wgbh/nova/rss/nsnpodcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/novasciencenow-20080213.mp3</feedburner:origEnclosureLink></item>

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