Opportunity Rover Discovers Martian Habitable Zone Favorable for Pre-biotic Chemistry

On the cusp of the 10th anniversary since launching to the Red Planet, NASA's long lived Opportunity rover has discovered a habitable zone on Mars that once coursed with 'drinkable water' and possesses the chemical ingredients necessary to support a path to potential Martian microbes. At a rock called "Esperance", Opportunity found a cache of