Mars Express captures images of Acheron Fossae, revealing the Red Planet’s split terrain—ancient cratered highlands and ...

A mineral known as siderite, discovered in rock samples collected by the National Aeronautics and Space Administration's ...

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence of the planet's warmer and wetter ancient past when it boasted substantial ...

A surprise discovery in Gale Crater is the component that was missing in the puzzle of Mars's climate history.

Samples drilled by the Curiosity rover on Mars have revealed abundant signs of a carbon cycle that remained hidden from ...

Findings appear to address a key mystery about Mars’s ancient past: How and when was the planet’s atmosphere thick enough to ...

Billions of years ago, Mars was warmer and wetter than today, perhaps because volcanoes belched enough carbon dioxide to ...

NASA has admitted that an over 300-foot-wide hole in the surface of Mars could be a 'portal' leading to alien life hiding ...

The European Space Agency (ESA) just released some new snapshots from its Mars Express orbiter that detail the dynamic ...