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May 2, 2025
An astronomer explores the cosmos and the limits of what science can test. Plus, how the mysterious properties of pasta—like how it bends, coils, and breaks—have been tested by physicists for decades. And, millions of years ago, iguanas somehow got from North America to Fiji. Scientists think they made the trip on a raft of fallen vegetation.
41:43
Tracking a Space Rock’s Streak Past Earth
Asteroid 2012 DA14 spans half a football field, and will whiz by the Earth a mere 17,000 miles above us–closer than many satellites.
21:09
A New View of Newton in ‘Isaac’s Eye’
A new play looks at the rivalry—real and imagined–between scientists Isaac Newton and Robert Hooke.
4:42
Art Meets Geek at Toni Dove’s Studio
“This is geek central,” says artist Toni Dove of her New York City studio.
46:40
Science of Slumber: How Sleep Affects Your Memory
How much sleep does your brain need? Experts discuss the links between sleep, memory, and cognition.
16:27
Researchers Point to the Demise of the Dinosaurs
Scientists are working to refine the dates for an ancient cosmic collision.
17:21
Tracking Privacy and Ownership in an Online World
How much of your personal data is really yours to control?
11:59
Automakers Drive Towards Hydrogen Cars
Carmakers are teaming up to develop fuel cell cars. Is the time right for the technology?
47:18
Are We Losing the Race Against Climate Change?
China burns as much coal as the rest of the world combined. But it also leads in clean tech, and has a national climate change policy in place. A look at how the world is tackling climate change–with or without us.
5:08
How Owls Turn Heads
How do these birds turn their heads 270 degrees without damaging their blood vessels?
4:50
Dung Beetles Use Cosmic GPS to Find Their Way
Dung beetles use light from the Milky Way to help them navigate at night.