Scientists have long been intrigued by the glaciers on Mars, once believed to be primarily composed of rocky rubble with just ...

On the flanks of Martian mountains and crater rims, curious shapes sprawl outward like thick syrup frozen mid-flow. But these are not rivers of rock or lava. They’re massive glaciers, hidden under ...

Mars has a cold, desert-like climate with a thin atmosphere that supports extreme temperature variations, from highs of 68 °F ...

Scientists find Mars' glaciers are rich in ice, not rock, revealing clues about its frozen past and its promise for future missions.

Similar conditions on Mars can also produce dust devils. But the whirls on the Red Planet tend to be both wider and taller than their counterparts on Earth, and scientists aren't sure why.

Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the planet's violently varying tilt may be a key factor.

Looking at dunes and other rock formations on both Earth and Mars can tell scientists the environmental conditions that created them ...

Dust devils, a combination of air and dust, are common on Mars. Released Wednesday, the selfie is a composite of 59 images taken by the camera on the end of the rover's robotic arm, according to NASA.

Curiosity Mars rover turns 10 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 ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.