LOS ANGELES — Virgin Galactic rolled out a new version of its SpaceShipTwo space tourism rocket Friday as it prepares to return to flight testing for the first time since a 2014 accident destroyed the ...

The North American X-15 did more than set records; it quietly redrew the map of what a piloted aircraft could survive at the edge of space. By pushing hypersonic flight to extremes that still stand ...

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 ...

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 ...

The SpaceShipTwo craft, a suborbital, rocket-fueled space plane called the VSS Unity, lifted off shortly after 8 a.m. local time. It was carried aloft under a larger carrier plane for nearly an hour ...