There is evidence that at least some water existed on the surface of Mars around 4bn years ago. Exactly where this water came from, however, remains a mystery. Some theories suggest that ancient ...

Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to feed hundreds of lakes. A new study from geologists at the University of ...

So if both water and carbon dioxide were present during Mars’ ancient past, then so should evidence of carbonate minerals. Previous discoveries, however, weren’t able to find sufficient ...

An ancient civilization on Mars was wiped out by a nuclear attack ... he described being in the midst of the ruins of a megalithic city with gigantic pyramids,' said Reza Jorjani,.

Life on Mars could have thrived near active volcanoes and an ancient mile-deep lake — Strange sphere-studded rock on Mars found by NASA's Perseverance rover — 'Poppy seeds' and 'leopard spots ...

Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to feed hundreds of lakes. A new study from geologists at the University of ...

Geologists weigh in on a long-running debate about Mars: Billions of years ago, was the Red Planet warm and wet or cold and dry? Visit ancient Mars -- a surprisingly temperate planet where snow or ...