New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...

Discoveries of clay minerals in Martian mounds by researchers indicate that Mars once had large bodies of water billions of ...

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

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

The findings are the result of the ongoing studies performed by NASA’s Curiosity rover, which has been scouring the red ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

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

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

The signs of wave ripples in the sandy shores of ancient lake beds, created as wind pushed water back and forth have been ...

The planet is the seventh largest and is currently inhabited solely by robots. However, the space agency is working hard to ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.