Mars wasn't always a frozen desert. New data from NASA's MAVEN probe reveals its atmosphere is still actively escaping into space. Discover how the loss of its magnetic field doomed the planet, ...

Would you like to live in a house on Mars made with Earth bacteria and Martian rocks?

For decades, we saw Mars as a silent, still world. That view was wrong. Join us as we reveal the truth about the Martian sky.

Dust devils on Mars generate tiny electrical sparks. This could help explain how the Red Planet’s atmosphere and surface are ...

The first step on the moon was one of humanity's most exciting accomplishments. Now scientists are planning return trips—and dreaming of Mars beyond.