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

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 ...

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

Was Mars a dry and cold planet billions of years ago like we see today, or was it warmer, wetter, and possibly having the ...

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

Even at a young age, Benjamin Tutolo was interested in the cosmos. It’s a curiosity that never waned. In fact, it led to the ...

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

In short: Mars may have gone from cozy greenhouse to ice-cold rock thanks to its own carbon cycle. Adding to the intrigue, Curiosity also sniffed out iron oxyhydroxides — minerals that suggest ...

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

One of the big remaining conundrums is what exactly happened in Mars’ ancient past that transformed the world from a wet and warm one to the cold, dry orb we see today. Plenty of evidence ...