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 ...

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

President Donald Trump made a bold promise to America minutes after taking the Oath of Office: pledging that an American flag ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

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

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

The Wolf Moon will reach its peak fullness at 5:27 p.m. Eastern Time on January 13. It will rise in the sky about an hour ...

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

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, ...