During the Cold War in the 1960s the U.S.A.F. and NASA tested the experimental rocket-powered aircraft X-15 that set altitude and speed records and reached the edge of outer space.
X-15 (1961)
During the Cold War in the 1960s the U.S.A.F. and NASA tested the experimental rocket-powered aircraft X-15 that set altitude and speed records and reached the edge of outer space.