Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...

New research suggests Mars was once a blue planet, as scientists identify river deltas and signs of a vast ancient ocean on ...

Boffins from the University of Bern used high-resolution images captured from camera orbiting Mars showed geomorphological ...

Billions of years ago, water flowed across Mars. Most scientists agree the red planet had rivers. But did those rivers flow into an ocean? New research from the University of Arkansas found strong ...

In the eyes of many planetary scientists, the surface of Mars's northern hemisphere has long looked like it once contained an ocean. Now it is "sounding" that way, too. Previous evidence for an ...

The findings potentially solve the paradox of how liquid water seems to have persisted on Mars even when the climate grew too ...

FAYETTEVILLE, Ark. — Researchers at the University of Arkansas have recently discovered geological formations on Mars that suggest the past presence of large rivers that once flowed into an ocean.

W A S H I N G T O N, June 23 -- Hard on the heels of an announcementthat scientists may have found evidence that water still flowsto the surface of Mars, geologists said today that they have proofthat ...