In 1963, a routine X-15 test flight climbed just a little higher than planned, carrying pilot Joseph Walker beyond the Kármán Line and into space. This is the precise chain of decisions, physics, and ...
This aging bomber continues to adapt, proving its resilience in a changing world.
During the Space Race, the Air Force sent an officer to sky dive from the edge of space for a science experiment.
In July 1963, the X-15 was supposed to chase a carefully planned altitude profile, but tiny performance shifts pushed Flight 90 past the space boundary and made Joe Walker the first U.S. civilian in ...