Mars, long painted as a frozen desert, is starting to look more like a planet that once knew the feel of warm rain and ...

Bleached clay rocks found on the Martian surface suggest that the Red Planet was once home to heavy rainfall and tropical ...

The first global atlas of Martian watersheds reveals 16 huge ancient river systems that once shaped Mars and may hold clues ...

Ancient Mars once teemed with flowing rivers, forming vast drainage systems. A new study has mapped these large basins, ...

Forget the dusty, rusty landscape you see today. Billions of years ago, Mars may have been soaking wet. Tropical storms might ...

Mars’s Coloe Fossae reveals a landscape shaped by ancient ice ages, with deep valleys, cratered terrain, and frozen debris ...

Mars Express orbiter captures a slightly elliptical crater measuring roughly 12 miles (20 kilometres) east to wes ...

NASA is sending two spacecraft to Mars on their new ESCAPADE mission to reveal how space weather robbed it of its atmosphere and turned it dry ...

Researchers have documented 55 instances of "mini lightning" over two Martian years by eavesdropping on the whirling wind ...

The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...

This temporal lag is a direct consequence of Albert Einstein’s Theory of General Relativity. The rule is simple: the weaker ...

Despite being one of the most promising places to explore for signs of life, "special regions" and "uncertain regions" may be ...