Reverse Engineering Europa
By conducting experiments in ultra-chilled vacuum chambers, astrobiologist Kevin Hand hopes to inform how future NASA missions search for life on icy moons.
To Get to Europa, Think Like MacGyver
A look at the idea lab where scientists are preparing for a fly-by mission to one of Jupiter’s icy moons.
7:41
Federal Science Freedom, Cancer Death Rates, Snake Trackers
With federal scientific agencies facing restrictions on what they say and when, some scientists are planning to march on Washington.
Why The Multiverse Isn’t Just Madness
The multiverse—the idea that infinite universes stretch beyond our own—has gained traction among physicists. But others think it’s just a multi-mess.
25:38
The Gesture That Changed Human History
In his new book, physicist Carlo Rovelli takes a journey through modern physics, from Galileo to quantum gravity.
Facts About Asteroids That Rock
Which asteroid is made of metal, and which hides an ocean? The answers lie in our nifty asteroid trading cards.
16:29
Lucy and Psyche Asteroid Missions Explore the Early Universe
NASA’s upcoming asteroid missions will examine a metal world and primitive planetesimals.
46:55
2016 Year in Review
Gravitational waves, CRISPR, and Pokémon Go—a look at the big science stories of 2016.
12:00
Space Trivia, and a Cosmic Trip Planner
Astronomer Dean Regas shares some of his favorite stellar facts, and offers tips for the big skywatching event of 2017: the solar eclipse.
29:02
A True Story of High Drama in Space
In this 1995 segment from the Science Friday archives, Apollo 13 mission commander Jim Lovell tells the story of the flight’s survival after an explosion in space.