Data from the Mars Express orbiter has been used to create a visualization of "a vast system of deep and steep valleys that stretches out for around 1190 km," on Mars called Noctis Labyrinthus, ...

This discovery indicates that formaldehyde contributed to the formation of organic matter on ancient Mars, implying that bio-important molecules such as sugars and ribose (a component of RNA, which is ...

An astronomer is suggesting that Mars once had a large moon that exerted enough force to create a large bulge on its surface.

NASA’s Curiosity rover achieved a historic milestone by capturing the first-ever image of Earth alongside Phobos, one of Mars ...

Although Mars is currently a cold, dry planet, geological evidence suggests that liquid water existed there around 3 to 4 ...

Dubbed "araneiform terrain," the Mars surface formations span over a half-mile long and have hundreds of branches that ...