UC Davis biologist Jonathan Eisen discusses the various ecosystems of microbes that live on, and inside of, the human body.

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Added: Tue Jan 10 21:41:14 UTC 2012
Air date: Tue Jan 10 00:00:00 UTC 2012
Duration: 05:22

Neuroscientist David Eagleman discusses the relatively minor role the conscious mind plays in comparison to the rest of the brain.

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Added: Thu Jan 05 21:38:14 UTC 2012
Air date: Thu Jan 05 00:00:00 UTC 2012
Duration: 03:42

According to neuroscientist David Eagleman, the "first misstep" in our understanding of cognition is the idea that the human brain is a unified, cohesive device. "People are a multiplicity of different things happening inside the brain."

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Added: Thu Jan 05 21:38:14 UTC 2012
Air date: Thu Jan 05 00:00:00 UTC 2012
Duration: 03:23

A group of scientists discuss the growing international concern of space junk and debris originating from colliding satellites.

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Added: Tue Jan 03 01:27:12 UTC 2012
Air date: Fri Dec 30 00:00:00 UTC 2011
Duration: 03:41

Biologist Richard Dawkins presents a thought experiment to explain human origins. Following each generation backwards across millions of years of evolution, Dawkins shows why no species can truly be said to have a "first" ancestor.

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Added: Wed Oct 19 01:10:13 UTC 2011
Air date: Sat Oct 15 00:00:00 UTC 2011
Duration: 04:28

Theoretical astrophysicist Suketu Bhavsar examines the probability that many versions of you exist in an universe that expands infinitely.

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Added: Mon Oct 10 18:44:11 UTC 2011
Air date: Fri Oct 07 00:00:00 UTC 2011
Duration: 02:22

Oceanographer Jeremy Jackson explains that the BP oil spill is just one of many environmental degradations already affecting the Gulf Coast region.

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Added: Tue Oct 04 01:40:08 UTC 2011
Air date: Tue Oct 04 00:00:00 UTC 2011
Duration: 06:03

Gabe Zichermann, author of Gamification by Design, shares a recent scientific study suggesting that the challenge of mastering a game (in this case, juggling) may lead to an increase of gray matter in the brain.

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Added: Wed Sep 28 04:02:12 UTC 2011
Air date: Wed Sep 28 00:00:00 UTC 2011
Duration: 02:01

Professor Donald Johanson explains how the famous 3.2 million year-old skeleton he discovered in 1974 became known as "Lucy." Originally a simple off-the-cuff suggestion, the name ended up securing the fossil a place in popular culture.

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Added: Fri Aug 05 00:02:10 UTC 2011
Air date: Fri Aug 05 00:00:00 UTC 2011
Duration: 04:05

Viruses make up "about 8 or 9 percent" of our genome, notes science journalist Carl Zimmer. Zimmer explains how viruses throughout history have affected human evolution -- and, in fact, continue to affect us every day.

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Added: Sat Jun 25 01:27:07 UTC 2011
Air date: Sat Jun 25 00:00:00 UTC 2011
Duration: 04:11

Carl Zimmer, author of A Planet of Viruses, reveals surprising information about how viruses interact with bacteria in the ocean, a process that possibly contributes to climate change. "Viruses are planetary forces," he says.

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Added: Sat Jun 25 01:27:06 UTC 2011
Air date: Sat Jun 25 00:00:00 UTC 2011
Duration: 04:15

Dr. Spencer Wells, explorer-in-residence at the National Geographic Society, describes his work examining human origins not through skeletal records, but rather by analyzing DNA.

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Added: Mon Jun 20 01:17:08 UTC 2011
Air date: Sat Jun 18 00:00:00 UTC 2011
Duration: 02:49

Dr. Charles Camarda, senior advisor for innovation at NASA, explains the challenges of fostering new ideas in an organization where even small mistakes can lead to disaster.

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Added: Tue Jun 07 14:29:10 UTC 2011
Air date: Sat Jun 04 00:00:00 UTC 2011
Duration: 03:13

Psychologist Lera Boroditsky digs into the linguistics of 'freedom fries' to understand why the patriotic phrase never quite took off with the general public.

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Added: Thu Apr 07 04:19:11 UTC 2011
Air date: Thu Apr 07 00:00:00 UTC 2011
Duration: 03:26

Using former Vice President Dick Cheney's 2006 quail hunting accident as an example, cognitive linguist Lera Boroditsky examines how carefully chosen language can affect an altered interpretation of real-world events.

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Added: Thu Apr 07 04:19:11 UTC 2011
Air date: Thu Apr 07 00:00:00 UTC 2011
Duration: 02:54

It's a fact: Humans and chimpanzees share over ninety-eight percent of the same genes. So just how significant is that extra two? Neurologist Robert Sapolsky explains.

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Added: Fri Mar 18 01:31:10 UTC 2011
Duration: 03:57

They're not called "Man's Best Friend" for nothing. How is it that dogs always seem to know what's on our minds? Acclaimed neurologist Robert Sapolsky explains.

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Added: Sun Mar 13 21:12:12 UTC 2011
Air date: Fri Mar 11 00:00:00 UTC 2011
Duration: 02:21

Neurologist Robert Sapolsky examines the primate brain to show pleasure isn't so much about the reward, but in the anticipation of getting one. He notes that humans seem to be unique among animals in our willingness to put off a pay-off...

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Added: Sun Mar 13 21:12:12 UTC 2011
Air date: Fri Mar 11 00:00:00 UTC 2011
Duration: 05:12

In this RSA Animate, Steven Pinker, experimental psychologist, cognitive scientist, linguist and author of popular science writings, shows us how the mind turns the finite building blocks of language into infinite meanings.

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Added: Wed Mar 09 03:35:12 UTC 2011
Duration: 11:02
Rating: 4.4 / 5.0

Astrophysicist Martin Rees explains how astronomers use advanced computer models to help understand the shapes and motions of galaxies.

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Added: Wed Feb 16 05:23:12 UTC 2011
Air date: Tue Feb 15 00:00:00 UTC 2011
Duration: 03:03