Stand on the surface of Mars without a spacesuit and you would lose consciousness in roughly 15 seconds. Not because of the ...

The organic molecules discovered by NASA’s Curiosity rover could have been formed by life, but they could have also come from ...

Hundreds of thousands of dark streaks are crawling down Martian hillsides, vanishing, and reappearing with the seasons. Two ...

For all the drama around getting to Mars, the harder question starts after landing. A person can step onto the planet with ...

The wide strip of land in Utopia Planitia imaged by Mars Express. The dark volcanic material is on the right, while grabens ...

While scouring a 50-million-year-old crater on Mars, the Curiosity rover stumbled upon a polygon-shaped pattern that sort of ...

Scientists edge closer to answering Mars’ biggest question: Did life ever exist on the red planet? Here's the latest from two ...

"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity ...

Researchers identified a species that can survive radiation, extreme heat and simulated Martian soil, posing a new challenge ...

NASA's Curiosity Rover discovered a large cluster of polygonal rocks on the planet of Mars, which may indicate evidence of ...