X-15 Space Record: Plane Flown to 59-mile Mark Major Robert M. White takes the X-15 aloft to a record mark of 58.7 miles and thus qualifies for his astronauts wings by going more than 50 miles into space. He experiences weightlessness just as other astronauts. B-52 Air force plane with X-15 attached. B-52 on runway, taking off. An X-15 is launched into space from a B-52 mother-ship. Camera catches release of X-15 from B-52, looks as if camera is attached to X-15 (POV)during flight. Major White in cockpit of plane after flight. Military officials gathered around, as if looking at something top secret. Major Whites' son greets him after flight. Side view of White House. CU Collier Trophy. Major White and three fellow X-15 pilots are awarded the Collier Trophy for contributions to aviation at the White House from President Kennedy. Photographers, cameras. President Kennedy seen amongst crowd on the White House lawn.