Key Points - NASA's X-43A hypersonic research vehicle, part of the "Hyper-X" program, still holds the world record for an air-breathing aircraft, achieving a speed of Mach 9.64 (6,363 mph) in its final flight on November 16, 2004. -The 12-foot-long ...

Whoops. NASA accidentally sent commands to Voyager 2 that cut off communications with the probe by pointing its antenna the wrong way. The satellite is programmed to reset its orientation multiple times each year, which should resolve the issue. However ...

NASA's experimental X-43A didn't have a pilot and couldn't fly independently, but its blisteringly high speeds showed that hypersonic flight was possible.

It's not set in stone yet, but the date when NASA's X-59 quiet supersonic research aircraft will finally take off is fast approaching. The space agency already informed us on the most important aspects of the flight, including the departure and landing ...

NASA and Boeing have effectively cancelled the X-66 Transonic Truss-Braced Wing (TTBW) concept demonstrator aircraft. Officially described as a "pause," development of the thin-wing airplane is being halted in favor of ground-based testing. NASA had high ...

IMAP (short for "Interstellar Mapping and Acceleration Probe") is the primary payload on today's flight. The roughly $600 million spacecraft carries 10 different science instruments, which it will use to monitor solar activity as well as study interstellar dust and the solar wind, the stream of charged particles flowing continuously from our sun.

The "quiet supersonic aircraft's historic first flight is on the horizon, with final ground tests about to begin." That's how NASA decided to mark this year's National Aviation Day, getting us all worked up about the prospect of finally seeing, after years ...

Calls for the US to land astronauts back on the moon before China have been increasingly loud and frequent. But it all hinges on SpaceX’s Starship.