In July 1963, a series of minor deviations during X-15 Flight 90 pushed Joseph A. Walker higher than planned, carrying him beyond the Kármán Line and into space. This unexpected ascent quietly marked ...

On August 22, 1963, Joe Walker climbed into the X-15 for what was meant to be another controlled high-altitude test. The rocket plane was already the fastest aircraft ever built, pushing speeds and ...

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 ...

America returns to reusable hypersonic flight testing since the glory days of the X-15. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Stratolaunch has finally found a use for the world’s largest airplane. Twice in the last five months, the company launched a hypersonic vehicle over the Pacific Ocean, accelerated it to more than five ...