NASA
14th February 2014, 19:30
http://solarsystem.nasa.gov/missions/images/miss-mer_a-mp.jpg (http://solarsystem.nasa.gov/news/display.cfm?News_ID=46531)14 Feb 2014 - Mars Rover Heads Uphill After Solving 'Doughnut' Riddle
Researchers have determined the now-infamous Martian rock resembling a jelly doughnut, dubbed Pinnacle Island, is a piece of a larger rock broken and moved by the wheel of NASA's Mars Exploration Rover Opportunity in early January.
More... (http://solarsystem.nasa.gov/news/display.cfm?News_ID=46531)
Researchers have determined the now-infamous Martian rock resembling a jelly doughnut, dubbed Pinnacle Island, is a piece of a larger rock broken and moved by the wheel of NASA's Mars Exploration Rover Opportunity in early January.
More... (http://solarsystem.nasa.gov/news/display.cfm?News_ID=46531)