Key Points and Summary - The X-15 was a rocket-powered research aircraft that pushed human flight to the edge of space and deep into the hypersonic regime. -Air-launched from a B-52, three X-15s flew ...

-Air-launched from a B-52, the X-15 reached a record-breaking speed of Mach 6.7 and flew high enough to earn astronaut wings for eight of its pilots. -While never intended as a weapon, the X-15 was a ...

A SpaceX Falcon 9 rocket launched the X-37B space plane for its eighth mission (USSF-36) from Kennedy Space Center. The X-37B will conduct undisclosed experiments, including testing a new sensor for ...

Stratolaunch may conduct another hypersonic test flight this weekend from California's Mojave Air & Space Port. The flights are part of a Department of Defense program to test advanced capabilities ...

The U.S. Army successfully conducted the first rocket-powered launch of the Altius 700 drone from an AH-64E Apache helicopter ...