The most high-tech rover NASA has ever designed landed safely on Mars early Monday, after a 352-million-mile journey and a harrowing plunge through the planet's atmosphere dubbed “7 Minutes of Terror.” Beforehand, with Curiosity on autopilot, engineers became spectators, anxiously waiting to see if Curiosity executed the routine as planned. "I'm not the nervous type, but I haven't been sleeping all that well the last week or so even though I'm still very confident," said engineer Steven Lee.