While there are traces of ice deep under the planet's surface, the sheer scarcity of oxygen in Mars' atmosphere has diminished any belief that life could thrive on the planet. Until now.

An oxygen-rich ancient Mars, in turn, would necessitate a thicker atmosphere—possibly thick enough to have allowed oceans of water to accumulate on the surface.

It’s possible that some residual water under the surface has mixed with naturally occurring salts to produce brine. It’s also possible that the miniscule amount of oxygen in the Martian ...

Alien life could be hiding in briny water underneath the Martian surface, according to a new study.. Scientists had long feared that the lack of plants on Mars would also mean there wouldn't be ...

The loss of oxygen in water, also referred to as aquatic deoxygenation, ... Growing surface meltwater in East Antarctica signals new risks for global sea levels. 17 hours ago.