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

Scientists have pondered why Mars seemed to be missing sufficient carbonates indicative of its warm, wet past. Now, NASA’s ...

The surface of Mars is extremely cold, irradiated, and desiccated. But at one time, the planet was much warmer and wetter, ...

Visit ancient Mars—a surprisingly temperate planet where snow or rain falls from the sky, and rivers rush down valleys to ...

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

New research suggests ancient Mars may have been warm and wet, with rainfall or snowmelt carving its iconic valleys.

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

Mars attracts attention in an odd way. This time, it has to do with a skull-shaped rock rather than cold poles or old rivers.

Explore the latest discoveries about Mars' ancient carbon cycle revealed by NASA's Curiosity rover in Gale Crater.

New research suggests Mars - which we know as a very cold, dry, rocky planet - may once have actually been warmer and wetter.

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

A new study from geologists at the University of Colorado Boulder paints this picture of a Red Planet that was relatively ...