Earth is in a cosmic shooting gallery. With so many asteroids zipping around, how can we find them all before they find us?

Season Two, Episode 1 - The Sky Is Falling

A journey to the stars doesn’t just begin at the launchpad. Discover new worlds through epic stories told by scientists on missions to outer space.

Science

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.

Secrets of the Mars Rovers – S4E12

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

Digging In: When Rovers Get Dirt on Mars - S4E11

How does a rover keep driving on a planet with no gas stations? Shonte Tucker, Sabah Bux and Rob Manning power us through the ways Mars rovers keep going.

The Power of the Rovers – S4E10

Before a rover can make tracks on Mars, it first has to rocket off Earth, speed through space, and then alight gently on the planet’s surface. Al Chen and Swati Mohan guide us through the many stages of a rover’s flight to Mars.

Before You Can Drive, First You Have to Fly – S4E9

Buckle up for a Mars tour with rover driver Vandi Verma, and learn how NASA’s rovers have evolved to better explore this alien world.

Season Two, Episode 1 - The Sky Is Falling

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