The study published in the journal Geophysical Research Letters, suggests that the dichotomy might be due to internal heat ...

The southern highlands of Mars (which cover about two-thirds of the planet's surface) rise as much as 5 or 6 kilometers ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...

A puzzle about Mars has intrigued scientists for decades. The planet’s two hemispheres are strikingly different in structure.

"Rootless cones form when lava flows over wet or icy ground, causing it to boil and explode," said Dundas. "The region around ...

On Sunday (Jan. 12), the Red Planet will make its close approach of Earth at 8:32 a.m. EST (13:32 GMT). This event, known as ...

Buttes and mesas in Mars' Chryse Planitia contain clay minerals made from liquid water interacting with the rock nearly 4 ...

The new work suggests that the edge of the dichotomy was eroded back by hundreds of kilometers during the time when an ocean ...

A NASA satellite has spotted frozen "kidney beans" on Mars' sand dunes trapped in place until springtime. Photographing them ...

The study of ancient lava formations on Mars is the most complete to date from a series of observations conducted on the ...

There is water on Mars locked in icecaps and frozen underground, but there is no liquid water even though daytime ...