When considering landing sites on Mars, NASA astronauts say they don’t care where they go -- just don't kill them.
NASA's Curiosity rover will soon get history's first up-close look at Martian sand dunes.
Scientists have known for some time that Phobos, the larger of Mars’ two small moons, is a victim of gravity, edging closer toward its parent planet.
By combining high-resolution observations of Mars dune ripples and comparing them with sand dunes on Earth, scientists are beginning to understand how surface winds influence the Red Planet.
A solar storm that missed Earth but smashed into Mars last March dramatically confirmed long-held suspicions that the sun is blasting away the Martian atmosphere, and doing so at a rate that will leave the planet airless in another couple of billion years, if not sooner.
As if Mars' thin, frigid, dry air wasn't harsh enough, now scientists have found new evidence of acid fog altering the rocks near the Spirit Rover.
Humanity's most efficient path to Mars includes a pit stop near the moon, a new study suggests.
After three Earth years on Mars, the Curiosity rover has found extensive evidence of past liquid water in Gale Crater. Check out some of the highlights.
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