New discovery hints that Mars could have once supported life

The Mars we see today is a far cry from what it looked like many millions or even billions of years ago. The planet's dry, reddish landscape once had water, and scientists have already discovered evidence that rivers once flowed on its surface. But did life take root there? That's a question researchers would love to answer, and a new study points to the possibility that the planet might indeed have had some form of life. In a research paper published in Geophysical Research Letters, Patrick Gas...