Season Two, Episode 3: Bracing for a Crash

In this season 4 finale, Gentry Lee and Rob Manning reveal how surprises, hidden flaws, and uncertainties have always been a part of rovers and the exploration of Mars. 

Aaron Yazzie and others explain how, by scooping dirt and drilling rocks, rovers are digging deeper into the mysteries of Mars. 

Last fall, a NASA spacecraft slammed into an asteroid to test a way to avert a disaster on Earth. So are we safe now? For more, go to http://vox.com/unexplainable It’s a great place to view show transcripts and read more about the topics on our show. Also, email us! unexplainabl ...  Show more

Scientists are constantly searching for asteroids that could crash into Earth. But if they find one, will they be able to do anything about it? NASA has launched a spaceship that will slam into an asteroid to find out. For more, go to http://vox.com/unexplainable It’s a great pla ...  Show more

If an asteroid were hurling through space, making a beeline straight to Earth, how would humans prevent it from doing what it did to the dinosaurs? Would we bomb it? Would we shoot lasers at it like a scene from Hollywood's latest sci-fi flick? Well, the folks at NASA have design ...  Show more

Imagine a giant asteroid is out in space and headed on a collision course with planet Earth. Your mission, is to annihilate this giant mass of space rock before it can even get close. What do you do? How do you do it? Join Mindy and Guy Raz as they travel through time and space t ...  Show more