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

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

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

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

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

A scientific analysis of samples collected on the surface of Mars shows the red planet has evolved its own version of a ...

In the early solar system when the Sun was only about 75 per cent as bright as it is now, the theories state, Mars had sprawling ice caps. The ice caps, which covered the planet all the way to the ...

where the headwaters feeding Mars’ branching valleys emerged. The scenarios produced very different planets: In the case of melting ice caps, those valley heads formed largely at high elevations ...

Learn how scientists have made groundbreaking discoveries about water on Mars, indicating the potential for much more recent ...

Mars is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past. It is one of the most explored planets in the solar ...