Podcasts
Published: March 7, 2016, 6:16 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 1, 2016, 6:15 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 22, 2016, 6:13 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 15, 2016, 6:11 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 8, 2016, 6:10 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 18, 2016, 6:07 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 11, 2016, 6:05 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 4, 2016, 6:04 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 28, 2015, 6:01 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 21, 2015, 6 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 14, 2015, 5:58 p.m.
Duration: 1 minute 9 seconds
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Published: Dec. 7, 2015, 5:49 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 30, 2015, 4:23 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 23, 2015, 4:22 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 16, 2015, 4:21 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 9, 2015, 4:20 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 2, 2015, 4:19 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 26, 2015, 4:17 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 12, 2015, 9:01 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2015, 9 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 28, 2015, 8:59 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 21, 2015, 8:58 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 14, 2015, 8:57 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 7, 2015, 8:56 p.m.
Duration: 1 minute 30 seconds
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Published: Aug. 31, 2015, 8:54 p.m.
Duration: 1 minute 30 seconds
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Published: Aug. 24, 2015, 8:53 p.m.
Duration: 1 minute 30 seconds
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Published: Aug. 17, 2015, 8:52 p.m.
Duration: 1 minute 30 seconds
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Published: Aug. 10, 2015, 8:51 p.m.
Duration: 1 minute 30 seconds
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Published: Aug. 3, 2015, 8:50 p.m.
Duration: 1 minute 30 seconds
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Published: July 27, 2015, 8:49 p.m.
Duration: 1 minute 30 seconds
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Published: July 20, 2015, 8:47 p.m.
Duration: 1 minute 30 seconds
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Published: July 13, 2015, 8:46 p.m.
Duration: 1 minute 30 seconds
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Published: June 8, 2015, 8:41 p.m.
Duration: 1 minute 30 seconds
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Published: June 1, 2015, 8:40 p.m.
Duration: 1 minute 30 seconds
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Published: May 18, 2015, 8:39 p.m.
Duration: 1 minute 30 seconds
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Published: May 11, 2015, 8:37 p.m.
Duration: 1 minute 30 seconds
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Published: May 4, 2015, 8:36 p.m.
Duration: 1 minute 30 seconds
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Published: March 9, 2015, 8:35 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 23, 2015, 8:16 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 16, 2015, 8:14 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 9, 2015, 8:13 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 2, 2015, 8:10 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 19, 2015, 8:09 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 12, 2015, 8:08 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 5, 2015, 8:07 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 29, 2014, 7:39 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 15, 2014, 7:38 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 8, 2014, 7:37 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 24, 2014, 7:36 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 17, 2014, 7:35 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 10, 2014, 7:34 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 3, 2014, 7:32 p.m.
Duration: 1 minute 30 seconds
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Published: July 28, 2014, 7:31 p.m.
Duration: 1 minute 30 seconds
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Published: July 21, 2014, 7:30 p.m.
Duration: 1 minute 30 seconds
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Published: July 14, 2014, 7:28 p.m.
Duration: 1 minute 30 seconds
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Published: July 7, 2014, 7:27 p.m.
Duration: 1 minute 30 seconds
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Published: June 16, 2014, 7:17 p.m.
Duration: 1 minute 30 seconds
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Published: June 9, 2014, 7:15 p.m.
Duration: 1 minute 30 seconds
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Published: June 2, 2014, 7:11 p.m.
Duration: 1 minute 30 seconds
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Published: May 26, 2014, 4:34 p.m.
Duration: 1 minute 30 seconds
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Published: May 19, 2014, 4:32 p.m.
Duration: 1 minute 30 seconds
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Published: May 12, 2014, 4:30 p.m.
Duration: 1 minute 30 seconds
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Published: May 5, 2014, 4:25 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2014, 7:10 p.m.
Duration: 1 minute 30 seconds
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Published: March 24, 2014, 7:08 p.m.
Duration: 1 minute 30 seconds
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Published: March 17, 2014, 7:06 p.m.
Duration: 1 minute 30 seconds
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Published: March 10, 2014, 7:05 p.m.
Duration: 1 minute 30 seconds
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Published: March 3, 2014, 7:03 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 17, 2014, 7 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 10, 2014, 6:58 p.m.
Duration: 1 minute 30 seconds
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Published: Feb. 3, 2014, 6:55 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 27, 2014, 6:53 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 20, 2014, 6:08 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 13, 2014, 6:05 p.m.
Duration: 1 minute 30 seconds
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Published: Jan. 6, 2014, 5 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 21, 2013, 8:50 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 21, 2013, 8:47 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 21, 2013, 8:46 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:58 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:57 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:55 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:31 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:24 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:16 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 6:13 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 5:58 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 5:56 p.m.
Duration: 1 minute 30 seconds
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Published: Sept. 10, 2013, 5:55 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 10, 2012, 3:40 p.m.
Duration: 1 minute 30 seconds
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Published: Dec. 3, 2012, 2:57 p.m.
Duration: 1 minute 30 seconds
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Published: Nov. 20, 2012, 9:09 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 26, 2012, 5:37 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:19 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:17 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:16 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:15 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:13 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:12 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:02 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 4:01 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:59 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:57 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:56 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Oct. 5, 2012, 3:55 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:46 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:45 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:44 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:40 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:39 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:37 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:35 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:33 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:32 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:28 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:26 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 3:25 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 2:54 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 2:51 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 2:49 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 2:47 p.m.
Duration: 1 minute 30 seconds
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Published: Oct. 5, 2012, 2:43 p.m.
Duration: 1 minute 30 seconds
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Published: May 2, 2012, 7:35 p.m.
Duration: 1 minute 30 seconds
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Published: March 2, 2012, 1:43 p.m.
Duration: 1 minute 30 seconds
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Published: March 2, 2012, 1:42 p.m.
Duration: 1 minute 30 seconds
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Published: March 2, 2012, 1:40 p.m.
Duration: 1 minute 30 seconds
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Published: March 2, 2012, 1:37 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 8:55 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 8:48 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 8:38 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 8:37 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 1, 2012, 8:35 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 1, 2012, 8:32 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 8:30 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:53 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:48 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:46 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:45 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:41 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:40 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 1, 2012, 7:37 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:35 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:34 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:27 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:25 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:24 p.m.
Duration: 1 hour 1 minute 30 seconds
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Published: March 1, 2012, 7:21 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:20 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:18 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:14 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:07 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:05 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 7:01 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 6:59 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 6:56 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 6:53 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 6:48 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 1, 2012, 6:47 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 6:43 p.m.
Duration: 1 minute 30 seconds
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Published: March 1, 2012, 6:41 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 8:02 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 8 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 7:59 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:58 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:56 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:55 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:53 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 7:48 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:45 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:44 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 7:42 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: March 31, 2011, 7:41 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 7:39 p.m.
Duration: 1 minute 30 seconds
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Published: March 31, 2011, 7:22 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Sept. 15, 2010, 7:13 p.m.
Duration: 1 minute 34 seconds
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Published: Sept. 15, 2010, 7:12 p.m.
Duration: 1 minute 28 seconds
Listed in: Science
Published: Sept. 15, 2010, 7:08 p.m.
Duration: 1 minute 42 seconds
Listed in: Science
Published: Sept. 15, 2010, 7:07 p.m.
Duration: 1 minute 39 seconds
Listed in: Science
Published: Sept. 15, 2010, 7:05 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Sept. 15, 2010, 7:02 p.m.
Duration: 1 minute 36 seconds
Listed in: Science
Published: Sept. 15, 2010, 7:01 p.m.
Duration: 1 minute 26 seconds
Listed in: Science
Published: Sept. 15, 2010, 6:59 p.m.
Duration: 1 minute 25 seconds
Listed in: Science
Published: Sept. 15, 2010, 6:54 p.m.
Duration: 1 minute 29 seconds
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Published: July 9, 2010, 6:53 p.m.
Duration: 1 minute 26 seconds
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Published: July 9, 2010, 6:49 p.m.
Duration: 1 minute 34 seconds
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Published: July 8, 2010, 7:24 p.m.
Duration: 1 minute 32 seconds
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Published: July 8, 2010, 7:21 p.m.
Duration: 1 minute 36 seconds
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Published: June 7, 2010, 9:30 p.m.
Duration: 1 minute 34 seconds
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Published: June 7, 2010, 9:24 p.m.
Duration: 1 minute 42 seconds
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Published: June 7, 2010, 9:19 p.m.
Duration: 1 minute 39 seconds
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Published: June 7, 2010, 9:13 p.m.
Duration: 1 minute 33 seconds
Listed in: Science
Published: June 7, 2010, 9:07 p.m.
Duration: 1 minute 29 seconds
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Published: June 3, 2010, 9:50 p.m.
Duration: 1 minute 24 seconds
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Published: June 3, 2010, 9:39 p.m.
Duration: 1 minute 38 seconds
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Published: June 3, 2010, 9:39 p.m.
Duration: 1 minute 25 seconds
Listed in: Science
Published: June 3, 2010, 9:28 p.m.
Duration: 1 minute 40 seconds
Listed in: Science
Published: June 3, 2010, 9:19 p.m.
Duration: 1 minute 35 seconds
Listed in: Science
Published: March 15, 2010, 7:15 p.m.
Duration: 1 minute 35 seconds
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Published: March 15, 2010, 7:10 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:46 p.m.
Duration: 1 minute 34 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:43 p.m.
Duration: 1 minute 34 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:41 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:38 p.m.
Duration: 1 minute 28 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:35 p.m.
Duration: 1 minute 38 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:33 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:31 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:28 p.m.
Duration: 1 minute 34 seconds
Listed in: Science
Published: Feb. 11, 2010, 5:23 p.m.
Duration: 1 minute 29 seconds
Listed in: Science
Published: Nov. 23, 2009, 3:09 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: Nov. 23, 2009, 3:07 p.m.
Duration: 1 minute 35 seconds
Listed in: Science
Published: Nov. 23, 2009, 3:05 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: Nov. 23, 2009, 3 p.m.
Duration: 1 minute 37 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:28 p.m.
Duration: 1 minute 33 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:27 p.m.
Duration: 1 minute 41 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:25 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:23 p.m.
Duration: 1 minute 41 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:21 p.m.
Duration: 1 minute 27 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:20 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:17 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: Oct. 16, 2009, 9:13 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Aug. 14, 2009, 7:08 p.m.
Duration: 1 minute 43 seconds
Listed in: Science
Published: Aug. 14, 2009, 7:05 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: Aug. 14, 2009, 7:02 p.m.
Duration: 1 minute 29 seconds
Listed in: Science
Published: Aug. 14, 2009, 7 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Aug. 14, 2009, 6:57 p.m.
Duration: 1 minute 27 seconds
Listed in: Science
Published: Aug. 14, 2009, 6:56 p.m.
Duration: 1 minute 33 seconds
Listed in: Science
Published: Aug. 14, 2009, 6:53 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Aug. 14, 2009, 6:51 p.m.
Duration: 1 minute 28 seconds
Listed in: Science
Published: Aug. 14, 2009, 6:48 p.m.
Duration: 1 minute 42 seconds
Listed in: Science
Published: June 5, 2009, 6:55 p.m.
Duration: 1 minute 45 seconds
Listed in: Science
Published: June 5, 2009, 6:53 p.m.
Duration: 1 minute 41 seconds
Listed in: Science
Published: June 5, 2009, 6:46 p.m.
Duration: 1 minute 27 seconds
Listed in: Science
Published: June 5, 2009, 6:43 p.m.
Duration: 1 minute 36 seconds
Listed in: Science
Published: June 5, 2009, 6:41 p.m.
Duration: 1 minute 36 seconds
Listed in: Science
Published: June 5, 2009, 6:38 p.m.
Duration: 1 minute 32 seconds
Listed in: Science
Published: June 5, 2009, 6:36 p.m.
Duration: 1 minute 33 seconds
Listed in: Science
Published: June 5, 2009, 6:33 p.m.
Duration: 1 minute 16 seconds
Listed in: Science
Published: March 10, 2009, 9:15 p.m.
Duration: 1 minute 22 seconds
Listed in: Science
Published: March 10, 2009, 9:12 p.m.
Duration: 1 minute 12 seconds
Listed in: Science
Published: March 10, 2009, 9:09 p.m.
Duration: 1 minute 36 seconds
Listed in: Science
Published: March 10, 2009, 9:06 p.m.
Duration: 1 minute 23 seconds
Listed in: Science
Published: March 10, 2009, 9:02 p.m.
Duration: 1 minute 34 seconds
Listed in: Science
Published: March 10, 2009, 8:57 p.m.
Duration: 1 minute 27 seconds
Listed in: Science
Published: March 10, 2009, 8:54 p.m.
Duration: 1 minute 28 seconds
Listed in: Science
Published: March 10, 2009, 8:50 p.m.
Duration: 1 minute 20 seconds
Listed in: Science
Published: Jan. 28, 2009, 8:37 p.m.
Duration: 1 minute 33 seconds
Listed in: Science
Published: Jan. 28, 2009, 8:34 p.m.
Duration: 1 minute 35 seconds
Listed in: Science
Published: Jan. 28, 2009, 8:30 p.m.
Duration: 1 minute 37 seconds
Listed in: Science
Published: Jan. 28, 2009, 8:25 p.m.
Duration: 1 minute 31 seconds
Listed in: Science
Published: Jan. 28, 2009, 8:22 p.m.
Duration: 1 minute 28 seconds
Listed in: Science
Published: Jan. 28, 2009, 8:20 p.m.
Duration: 1 minute 28 seconds
Listed in: Science
Published: Jan. 27, 2009, 8:22 p.m.
Duration: 1 minute 29 seconds
Listed in: Science
Published: Jan. 27, 2009, 8:03 p.m.
Duration: 1 minute 36 seconds
Listed in: Science
Published: Jan. 27, 2009, 8:01 p.m.
Duration: 1 minute 24 seconds
Listed in: Science
Published: Jan. 27, 2009, 7:56 p.m.
Duration: 1 minute 34 seconds
Listed in: Science
Published: Jan. 2, 2009, 12:55 p.m.
Duration: 1 minute 38 seconds
Listed in: Science
Published: Dec. 15, 2008, 7:49 p.m.
Duration: 1 minute 34 seconds
Listed in: Science
Published: Dec. 2, 2008, 4:36 p.m.
Duration: 1 minute 29 seconds
Listed in: Science
Published: Oct. 8, 2008, 7:42 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Oct. 8, 2008, 7:38 p.m.
Duration: 1 minute 25 seconds
Listed in: Science
Published: Sept. 24, 2008, 9:11 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Sept. 24, 2008, 9:10 p.m.
Duration: 1 minute 30 seconds
Listed in: Science
Published: Sept. 24, 2008, 9:08 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 9:06 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 9:04 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 9:03 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 9:01 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 8:59 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 8:55 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 8:52 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 8:48 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 24, 2008, 8:43 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 22, 2008, 9:18 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 22, 2008, 9:18 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 22, 2008, 9:18 p.m.
Duration: 3 minutes
Listed in: Science
Published: Sept. 22, 2008, 9:18 p.m.
Duration: 3 minutes
Listed in: Science