An HTC headset designed to work in space is offsetting the physical and psychological challenges of humans living off-world.

Scientists confirm the existence of liquid water on Mars, altering our understanding of the Red Planet. Evidence of wave ...

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

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

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

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

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 ...

Thousands of mysterious clay mounds found on Mars were formed by ancient water on the Red Planet's barren northern plains, ...

The area containing the clay-bearing mounds is geologically connected to Oxia Planum, which is where Rosalind Franklin will ...

Heads up! Four planets are visible in the evening sky this month, and another two planets can be found with a little help.

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