Mars, often imagined as a lifeless desert battered by radiation and cold, holds within its crust the haunting memory of a once vibrant world. Billions of years ago, the Red Planet was nothing like we ...

Even so, Haas is sure that the structures in the images prove there is life on Mars. In 2011, NASA's Mars Reconnaissance Orbiter (MRO) spacecraft snapped a photo of a bizarre formation on the surface ...