Mars might hold enough oxygen under its surface for life

We've long thought about the unlikely possibility of life on Mars, but it's under the planet's surface where those chances look stronger. A new study published in Nature suggests that the salty water which subsists under Mars' surface could hold enough oxygen to support the kind of life which flourished on Earth billions of years ago. SEE ALSO: What you need to know about the two spacecraft launching to Mercury Friday 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. Read more...More about Space, Science, Mars, Mars Exploration, and Science