The X-38—had it gone operational—would not have been the first reusable spacecraft. But it helped lay the groundwork for future space programs’ emphasis on reusability. The NASA X-38 was an ...

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 set of toy airplanes and ...

What You Need to Know: The X-20 Dyna-Soar, developed by the U.S. Air Force and Boeing from 1959 to 1963, was designed to be a pioneering hypersonic space plane that could serve as a reconnaissance ...

NASA's X-59 has finally taken flight. The X-59 is NASA's experimental new jet built to break the sound barrier without generating the thunderous sonic booms typically associated with supersonic flight ...