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 ...

The Artemis program has been NASA's best chance to get "boots on the moon" again. But with the new US administration taking ...

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

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

Trump says we're going to Mars. He may be making it harder to get there. President Donald Trump says we’re going to Mars, but ...

The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

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

Caltech scientists published a study using NASA Curiosity rover imagery showing the past existence of warm water on Mars.

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