Most planetary scientists agree that Mars’ extreme conditions would be uninhabitable to life as we know it. New research, however, suggests that we might be underestimating the hardiness of lichens.

A team of researchers with a variety of backgrounds and affiliated with multiple institutions in the U.S. has taken a realistic approach to looking at the question of whether Mars could be terraformed ...

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were carved by rivers, so it was once warm enough for liquid water. How—and ...

NASA's Curiosity rover has captured the first close-up images of a part of Mars that scientists say provide evidence of how water once flowed on the red planet. There were once rivers, lakes and ...

For decades, there have been claims of alien artifacts on Mars, but NASA continues to deny them. This video takes a closer look at the strange structures, such as the "Face on Mars," pyramids, and ...

New discoveries by NASA's Curiosity Mars rover may not only explain why the Red Planet is a dry, lifeless desert, but that it may have been on an inevitable path to being a dead world despite being so ...

As fun as it would be to visit Mars, we wouldn't necessarily want to walk a mile in the Curiosity rover's shoes — or rather, its wheels. After landing in Mars' Gale Crater in 2012 and traveling some ...