NASA’s Curiosity rover has photographed a bizarre, coral-shaped rock on Mars, believed to have formed billions of years ago.

Learn more about the hunt for bacteria on Mars and how astronauts will need to make sure they aren't bringing any dormant ...

Bright white rocks found by NASA’s Perseverance rover hint at ancient Martian rain lasting millions of years, raising new questions about how wet Mars once was and what those conditions might mean.

Arcadia Planitia does not draw attention in the way Mars’s great canyons or volcanoes do. It sits quietly across the northern ...

Nasa's HiRISE camera captures a strikingly young 0.8-km crater in Acidalia Planitia on Mars, revealing sharp details and ...

NASA’s Curiosity rover captured a coral-shaped rock on Mars. Though not alive, its shape reveals clues about the planet’s geology. Small discoveries like this help scientists decode Mars’ ancient past ...

Add Yahoo as a preferred source to see more of our stories on Google. The most exciting rock known to science is a school-desk-sized chunk of mudstone currently stuck on Mars. Formed from fine, ...

"The structures that we were able to identify in the images are clearly the mouth of a river into an ocean." The post ...

The most exciting rock known to science is a school-desk-sized chunk of mudstone currently stuck on Mars. Formed from fine, water-washed sediments on the floor of a long-lost lake—some 3.5 billion ...