In the decades that astronomers have been studying Mars, we’ve learned that its distinct color comes from rusted iron minerals in the dust that covers the planet. At some point in the Red Planet’s 4.5 ...

China's Zhurong rover, part of the 2021 Tianwen-1 mission, has found the first clear signs of ancient beach deposits under ...

Skylights, openings in the surface of Mars that descend down into caves, have been found on Mars, along with signatures for the presence of water ice. When you purchase through links on our site, we ...

In the 1970s, images from the NASA Mariner 9 orbiter revealed water-sculpted surfaces on Mars. This settled the once-controversial question of whether water ever rippled over the red planet. Since ...

For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may also be among the most promising places to search for signs of past life.

Just about all the important news from Mars over the past year and a half has come courtesy of the six-wheeled, instrument-laden, SUV-size Mars Science Laboratory, better known as the Curiosity rover.

Water is ubiquitous on Earth—about 70% of Earth's surface is covered by the stuff. Water is in the air, on the surface and inside rocks. Geologic evidence suggests water has been stable on Earth since ...

Did Mars' water escape underground, where it dwells today in vast amounts? Some scientists aren't so sure. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Designing, building, and launching a spacecraft is hugely expensive. That’s why NASA missions to Mars are designed with the hope that they’ll last as long as possible — like the famous Opportunity ...