When the Roswell incident occurred in 1947, the Army Air Forces was quick to declare that what had been discovered was not a UFO at all, but rather a weather balloon. Sound like a flimsy justification? A lot of other folks felt the same way. As it turns out, one conspiracy idea was confirmed: what landed in the desert was not a meteorological balloon. But don't get too excited, E.T. fans—it wasn't a UFO either. Today, we believe it was a Project Mogul balloon, an American attempt to spy on Soviet nuclear weapons development during the Cold War. Documentation showed in the early 1990s that one of Project Mogul's balloons was never officially recovered, and the New Mexico launch position makes it hig