Manufacturer proposes to instead focus its efforts on developing thin-wing technology, which it believes may have broader ...

NASA is closely monitoring a building-sized asteroid as it makes its closest approach to Earth today, among a group of five other space rocks passing by our planet over the next two days. The asteroid ...

Live updates from Monday's predawn NASA-SpaceX CRS-32 resupply mission that launched a Dragon capsule to the International ...

NASA flew the autonomous X-43 test vehicle to hypersonic speed two times in 2004, and the Air Force demonstrated an air-breathing scramjet engine at Mach 5.1 with the X-51 Waverider aircraft in 2013.

Launch recap: Scroll down to review live updates from the Monday, April 21, liftoff of a SpaceX Falcon 9 rocket from NASA's Kennedy Space ... window extending from 8:43 p.m. to 9:23 p.m. from ...