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 ...

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

Groundbreaking study finds Mars may once have had rain and snow - Research provides new insights into evolution of Red Planet ...

It’s hard to explain that with just ice.” Satellite images of Mars today still reveal the fingerprints ... lined up more closely with the real Red Planet. The researchers are quick to point ...

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

"Before Hubble, no generation ever had access to unimaginably vibrant views of space, stretching almost all the way back to ...

AFP/Getty Images Carbonate ... it likely impacted Mars’ ability to stay warm,” Tutolo explained. In short: Mars may have gone from cozy greenhouse to ice-cold rock thanks to its own carbon ...

We all know Mars is called “The Red Planet,” but have you ever stopped to wonder—why is it red? The classic joke explanation has been, “It’s rusty.” While that’s not entirely wrong, the truth is far ...