Asteroids, hydrogen make great recipe for life on Mars

A new study reveals asteroid impacts on ancient Mars could have produced key ingredients for life if the Martian atmosphere was rich in hydrogen. An early hydrogen-rich atmosphere on Mars could also explain how the planet ...

Signs of ancient flowing water on Mars

These images from ESA's Mars Express satellite show a branching, desiccated system of trenches and valleys, signs of ancient water flow that hint at a warmer, wetter past for the Red Planet.

Recent tectonics on Mars

These prominent trenches were formed by faults that pulled the planet's surface apart less than 10 million years ago.

NASA finds ancient organic material, mysterious methane on Mars

NASA's Curiosity rover has found new evidence preserved in rocks on Mars that suggests the planet could have supported ancient life, as well as new evidence in the Martian atmosphere that relates to the search for current ...

Solar-powered rover approaching 5,000th Martian dawn

The sun will rise on NASA's solar-powered Mars rover Opportunity for the 5,000th time on Saturday, sending rays of energy to a golf-cart-size robotic field geologist that continues to provide revelations about the Red Planet.

Image: Hues in a Martian crater slope

Impact craters expose the subsurface materials on the steep slopes of Mars. However, these slopes often experience rockfalls and debris avalanches that keep the surface clean of dust, revealing a variety of hues, like in ...

Opportunity rover to explore Mars gully

NASA's Opportunity Mars rover will drive down a gully carved long ago by a fluid that might have been water, according to the latest plans for the 12-year-old mission. No Mars rover has done that before.

Curiosity Mars rover completes its second Martian year

NASA's Curiosity Mars rover today completes its second Martian year since landing inside Gale Crater nearly four Earth years ago, which means it has recorded environmental patterns through two full cycles of Martian seasons.

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