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

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

Research suggests that an ancient shoreline helped to sculpt the drop between Mars' southern and northern hemispheres.

NASA engineer Håvard Grip explained, "Lack of surface texture gave the ... efforts to explore the red planet from the air. As we look to the future of exploring Mars, these aerial vehicles ...

These rocks might contain chemical fingerprints or organic molecules, fueling speculation about the possibility of ancient microbial life on the planet. Mars' blue rocks, along with dried ...