Curiosity, NASA's Mars rover, accidentally cracked open a seemingly ordinary rock, revealing an unexpected yellow substance ...

This time, it has come through an unintentional clash between the Curiosity Rover and a Martian rock in the Gediz Vallis ...

It's the first time the rover has found pure, or elemental, sulfur during its exploration.

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior.

A rock on Mars spilled a surprising yellow treasure after Curiosity accidentally cracked through its unremarkable exterior. When the rover rolled its 899-kilogram (1,982-pound) body over the fragile ...

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, NASA said.

New findings by NASA's Mars rover Curiosity complicate what scientists thought they knew about when the planet dried up for good.

Close-up images of a region of Mars scientists had previously only seen from orbit have revealed “dramatic evidence” of where water once flowed on the Red Planet.

There's also a theory that the two moons were created after a large object collided with Mars, creating debris that formed the two lunar bodies, similar to how Earth's moon likely formed.

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

Elon Musk says he hopes to have the first humans land on Mars by 2028.