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

Mars is thought to currently have all the necessary ingredients for life except for perhaps the most important one: liquid ...

The Mars rover found geological formations in Gale Crater showing how water percolated beneath the surface, and ...

Curiosity stitched 291 Mastcam photos into a color-balanced 360° panorama of Gale Crater’s “boxwork” ridges—spiderweb-like ...

Scientists had hypothesized before the rover arrived that the peculiar ridges formed with the last trickles of water in the ...

A warm afternoon on ancient Mars lasted about as long as a Silicon Valley internship. That is the sobering conclusion of a ...

The rover recently drilled a sample from a new region with features that could reveal whether Mars’ subsurface once provided ...

An analysis led by the University of Chicago of Mars Science Laboratory Curiosity rover data may explain why the planet was ...

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

New images from NASA's Curiosity Mars rover show the first close-up views of a region scientists had previously observed only ...

NASA Curiosity rover images reveal Mars ridges hinting at ancient rivers. Check the amazing videos and images here.

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth? A discovery ...