Shadow of a Martian Robot . ... Credit Copyright: Mars Exploration Rover Mission , JPL , NASA Explanation: What if you saw your shadow on Mars and it wasn't human ? Then you might be the Opportunity rover currently exploring Mars. ... Pictured above , Opportunity looks opposite the Sun into Endurance Crater and sees its own shadow . ... Although the Spirit rover is now stuck , Opportunity is continuing on its long trek to expansive Endeavor crater . ... NASA Official: Jay Norris. ...