Thousands of mounds and hills in Mars' barren northern plains are full of clay minerals, providing evidence that the rocks ...

The new work suggests that the edge of the dichotomy was eroded back by hundreds of kilometers during the time when an ocean might have occupied Mars' northern hemisphere. To view the Martian ...

The European Space Agency’s (ESA) Mars Express orbiter captured stunning views of a winter wonderland on Mars, but this isn’t ...

These Martian whirlwinds form, move across the surface and dissipate before others take their ... where dust devils have left ...

From arachnid-like formations and mysterious blobs to an underground ocean and a giant volcano, here are our 10 favorite things scientists discovered on Mars this year.

Snow dots the Martian landscape in these images from ESA's Mars Express orbiter and NASA's Mars Reconnaissance Orbiter.

Mars, once a planet abundant with water, now lies as a barren, arid expanse. Its surface features reveal a history where ...

Steeped in the United States' space race with the Soviet Union, the pursuit of a deeper understanding of Mars' resources and ...

The colour-coded view is based on a DTM of the region, from which the topography of the landscape can be derived. The reference unit for the HRSC-DTM is an equipotential surface of Mars (areoid). The ...

In all, more than 7 tons of human "space litter" is believed to be strewn across the landscape ... Mars and its approximate weight: Can't see our graphics? Click here. Possible missions to Mars ...