Explore Episode Segments
Could Life Exist on Newfound Alien Planet?
Astronomer Steven Vogt discusses a new discovery of a potentially habitable exoplanet.
Birding for the Holidays
Thousands of citizen scientists are taking part in the annual Audubon Christmas Bird Count.
Stem Cells Treat Lou Gehrig’s Disease, In Mice
Stem cell implants slowed the onset of symptoms—and scientists say human trials aren’t far behind.
Debunking Doomsday and Exploring Maya Science
Two archaeologists weigh in on what the ancient Maya actually said about 2012. Spoiler: not much.
The SciFri Book Club Tours ‘The Planets’
The book club reviews Dava Sobel’s 2005 homage to the solar system.
Shooting Stars: Capturing the Night on Camera
Photographer Colin Legg makes time-lapse movies of celestial scenes.
Future Fibers May Be Spun From Slime
The hagfish or “slime eel” shoots out slime containing silk-like fibers of remarkable strength.