geological mystery

Remember Rover? Rover is still finding stuff, and this latest find is strange, enigmatic, interesting, and worthy of further investigation. So far there is only a press release from NASA, here: NASA Mars Rover Opportunity Reveals Geological Mystery PASADENA, Calif. -- NASA's long-lived rover Opportunity has returned an image of the Martian surface that is puzzling researchers. Spherical objects concentrated at an outcrop Opportunity reached last week differ in several ways from iron-rich spherules nicknamed "blueberries" the rover found at its landing site in early 2004 and at many other…