NASA launched a contest this week for plans to produce food on Mars, located about 140 million miles from the beaches here on ...

We were as excited as anyone when MARSIS (the Mars Advanced Radar for Subsurface and Ionosphere Sounding) experiment announced there was possibly liquid water under the southern polar ice cap. If ...

Small lakes on ancient Mars may have remained liquid for decades, even with average air temperatures well below freezing.

NASA's Curiosity rover has sent back a striking new "postcard" from high on the slopes of the Red Planet's Mount Sharp, ...