Scientists Suggest That Mars Was Warm and Held Water Billions of Years Ago, Much More Like Earth in the Past Researchers have ...

Did Mars have lakes and rivers during a single period or over separate periods? This is what a recent study published in ...

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.

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

Mars haunts us as a vision of a planet gone wrong. It was once warm and wet, with rivers flowing across its surface and ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for decades. Now, Harvard researchers think they have a good explanation for a ...

NASA’s Curiosity Rover has been exploring Mars since 2012 and, more recently has found evidence of ice-free ancient ponds and ...

Rootless cones are small volcanic landforms ranging from several to several hundred meters in diameter, formed by continuous ...

NASA Administrator Bill Nelson left a final decision on a new mission architecture to the next NASA administrator working under the incoming Trump administration. President-elect Donald Trump ...

The samples, Nelson said, will provide a history "of what Mars was like millions of years ago when there was water in the lake, water coming down that river, and the big question, was there life ...

NASA's mission is to return rock, soil and others samples to Earth for study. NASA announced Tuesday that it's exploring two landing options to move forward with its mission to retrieve ...