Scientists have found evidence of enough liquid water on Mars to cover the entire planet with an ocean a mile deep, according to new research published Monday, and which scientists said could, in ...

Small lakes on ancient Mars may have remained liquid for decades, even with average air temperatures well below freezing.

Mars has a history of liquid water on its surface, including lakes like the one that used to occupy Jezero Crater, which have long since dried up. Ancient water that carried debris—and melted water ...

The Solar System has proved a surprising place, and perhaps one of the biggest surprises is that Earth isn't the only world with liquid water on its surface. Sure, there's a tiny bit that temporarily ...