"You could pull up Google Earth images of places like Utah, zoom out, and you’d see the similarities to Mars." ...

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red ...

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence ...

Despite its current dry and cold state, evidence suggests ancient Mars had significant amounts of liquid water in the form of ...

Mystery of where all the carbon dioxide went that once made the red planet far more hospitable has puzzled scientists for ...

For the past four years, NASA 's Perseverance rover has rambled over a region of Mars where scientists say a strong river ...

Mars may once have had a relatively warm and wet climate conducive to flowing water, rain and snow, producing a terrain much ...

Mars, the Red Planet, looks nothing like Earth today. However, its geological features indicate it once had a warm and wet ...

As it whooshed over the Gale Crater on February 28, the orbiter snapped a picture of the rover, which appears as a tiny black ...

Cornell researchers are offering an explanation after mistakenly identifying what appeared to be water on Mars’ south pole.