Aside from Earth, no planet in the solar system captures our imagination quite like Mars. The Red Planet is one of the few ...

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic ...

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

Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

Buttes and mesas in Mars' Chryse Planitia contain clay minerals made from liquid water interacting with the rock nearly 4 ...

In his prepared remarks, Trump, a longtime backer of U.S.-led space exploration and exploitation, singled out Mars and left ...

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

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

The United States will once again consider itself a growing nation, one that increases our wealth, expands our territory, ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...

These two planets are visible in the southwest sky.Mars is currently at opposition from the Sun. That means the Sun and the ...