A California man intends to launch himself 1,800 feet high on Saturday in a home-built rocket to prove that astronauts faked the shape of the Earth.Mike Hughes, a 61-year-old limo driver, said his stunt will be the first phase of the flat-Earth space program, sponsored by Research Flat Earth, a group that believes Earth is, well, flat.The rocket should travel about a mile at a speed of roughly 500 mph.“If you're not scared to death, you're an idiot,” Hughes said. “It's scary as hell, but none of us are getting out of this world alive. I like to do extraordinary things that no one else can do, and no one in the history of mankind has designed, built and launched himself in his own rocket.”