The Black Star and the Black Star

Many aviation experts claim this to be the rumored Aurora plane, a jet capable of reaching Mach 5 speeds. The US government vorociously denies the existence of the Aurora. We assume though, if the project failed, they would want to avoid accounting for $455 million. Then there was the black star, a rumored space plane whose construction was initiated in the early 1990s. It would have been the first and only model of its kind. This makes it incredibly difficult to differentiate between fact and fiction because the steps aren't possible to trace.