An arrowhead-shaped rock on Mars sporting features that may hint at ancient microbial activity on the Red Planet has left ...

Rocks loafing about on the surface of Mars have been harboring secrets about the red planet's mysterious past.

The Red Planet and its tiny moon Deimos were recorded at a very near distance as the asteroid-chasing spacecraft completed a flyby on Wednesday.

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity—or not ...

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity — or not.

The idea of an ancient Martian ocean has fascinated scientists for decades. Now, groundbreaking research based on radar scans ...

Such major and arbitrary cuts to NASA’s budget would do very little to save money, but they will undercut and decimate one of ...

Mars just dropped a surprise golden nugget —literally. Curiosity accidentally cracked open an ordinary-looking rock, only to ...

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

NASA’s Perseverance rover found pale rocks containing kaolinite on Mars, a mineral that forms in warm, wet conditions.

Since its arrival on the Martian surface five years ago, NASA’s Perseverance rover has been busy scouring the Red Planet for ...

Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records ...