Chile's Atacama Desert might not be true Martian territory, but it's close enough for the European Space Agency's new rover. Built by a crack engineering team in just six months, the Seeker rover was created to autonomously roam 6 km of Mars-like terrain and trace its way back. The Seeker just wrapped up a two week gauntlet in the Chilean wasteland using ol' fashioned dead reckoning and stereoscopic vision to find its way, compiling a 3D map of its surroundings as it puttered along. The full-scale rover wandered the arid terrain on its lonesome until temperatures forced it to stop after trekking 5.1 km. The red planet won't welcome an