Researchers have found new evidence for a massive subsurface ocean on Mars, again raising the possibility of microbial life.

Seismic readings of the interior of Mars strongly suggest large quantities of water buried 6 to 12 miles underground.

NASA’s Perseverance rover is tirelessly exploring Mars and recently overcame a rocky challenge to collect another valuable ...

Volcanic activity could also have triggered ... could only have formed when water was still present on the surface, Mars rusted earlier than we previously thought,” said Valantinas.

Mars has fascinated people for centuries, not only because it is our closest neighbor in space but also because of its ...

With new data coming in from Mars, scientists have a new theory about why the planet is red. What does this mean for whether ...

Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.

We found that ferrihydrite mixed with basalt, a volcanic rock ... only have formed when water was still present on the surface, Mars rusted earlier than we previously thought.

“The idea is that Mars’ climate cooled down by this time and the surface dried up ... and his colleagues previously suggested that volcanic activity in the region, as well as a change ...