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Henry Lin: What we can learn from galaxies far, far away
06:43 Posted: Feb 2014
Views: 406,039
Comments: 76 -
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Jason Pontin: Can technology solve our big problems?
10:03 Posted: Oct 2013
Views: 1,303,719
Comments: 235 -
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Seth Shostak: ET is (probably) out there -- get ready
18:40 Posted: Jun 2012
Views: 536,658
Comments: 216 -
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Michelle Borkin: Can astronomers help doctors?
09:39 Posted: Jan 2012
Views: 131,405
Comments: 38 -
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Phil Plait: How to defend Earth from asteroids
14:16 Posted: Nov 2011
Views: 1,752,907
Comments: 140 -
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Honor Harger: A history of the universe in sound
11:16 Posted: Jun 2011
Views: 731,366
Comments: 71 -
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Sean Carroll: Distant time and the hint of a multiverse
15:54 Posted: May 2011
Views: 1,105,072
Comments: 324 -
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Dimitar Sasselov: How we found hundreds of potential Earth-like planets
18:30 Posted: Jul 2010
Views: 998,538
Comments: 266 -
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Carter Emmart: A 3D atlas of the universe
06:57 Posted: Jul 2010
Views: 1,202,562
Comments: 169 -
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Jor-El: Last-ditch appeal to save the planet
02:22 Posted: Apr 2010
Views: 131,322
Comments: 78 -
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Richard Feynman: Physics is fun to imagine
65:55 Posted: Mar 2010
Views: 422,997
Comments: 138 -
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Sean Carroll: The arrow of time (Part 1 of 2)
28:57 Posted: Feb 2010
Views: 287,599
Comments: 157
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