"There is a palpable buzz here at the Jet Propulsion Laboratory (JPL) in Pasadena, California that something wonderful is about to happen in the exploration of Mars."
Very upbeat article by space.com
Evidence that suggests Mars was once a water-rich world is mounting as scientists scrutinize data from the Mars Exploration rover, Opportunity, busily at work in a small crater at Meridiani Planum. That information may well be leading to a biological bombshell of a finding that the red planet has been, and could well be now, an extraterrestrial home for life.