Why it matters: While not evidence of life, these discoveries show that ancient Mars had complex organic chemistry, ...

Nasa’s Curiosity rover has been investigating the spider-web-like rock formations found on Mars – and found mysterious ...

New photos captured by NASA's Curiosity rover show that Mars' giant, spiderweb-like "boxwork" features are covered in tiny, never-before-seen nodules that bear a striking resemblance to arachnid ...

NASA finds carbon molecules in ancient Martian lake, and scientists admit it is difficult to explain them without life.

NASA's Curiosity rover just found bizarre nodules on giant Martian "spiderwebs." Scientists are puzzled.

Mars once had sprawling river systems that rivaled major watersheds on Earth, and scientists have now identified the biggest ones for the first time. Researchers mapped 16 massive drainage basins ...

The surface of Mars looks like an empty red wasteland. But if you look a bit closer, the remnants of an ancient alien civilization begin to take shape. At least, that's the conclusion of George J.

NASA’s Curiosity rover investigates boxwork rock formations on Mount Sharp to gather evidence of ancient groundwater on Mars.

For decades, scientists have debated whether Mars once had a large ocean. Images from orbiters have shown valleys, channels ...

A new image captured by the Mars Express orbiter offers a striking view of one of the most heavily cratered regions on Mars. The image shows part of Arabia Terra, a vast plain located in the planet’s ...