In 1963, a small miscalculation during a routine test flight silently pushed a NASA civilian pilot across the boundary of space, a fact history almost forgot. This is the classified edge of the X-15 ...

Joe Engle, the last surviving member of the test pilots who skimmed the edge of space on the X-15 rocket plane in the 1960s and who later orbited the Earth on space-shuttle missions, died July 10 at ...

Joe Engle’s Remarkable Career Bridged Gap Between Air and Space, Broke Records. Astronaut, X-15 test pilot and space shuttle pilot Joe Engle has died at home in Houston, Texas. He was 91. Engle passed ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This collection consists of two items ...

An important part of data collection for the United States space program, the North American X-15 had astonishing performance utilizing the technology of the 1950s and 60s. The North American X-15 was ...

Why it mattered: The X-15 expanded understanding of hypersonic aerodynamics, stability, and control, influencing future spacecraft and high-speed aircraft designs. How it worked: Air-launched from a B ...