During the first six missions, the X-37B spent more than 3,774 days in orbit. It launched on its current mission, OTV-7, on ...

NASA's 'quiet' supersonic jet is getting ready to take off NASA is continuing development of the X-59, an experimental supersonic aircraft designed to make sonic booms quieter. The X-59 is not ...

The X-37B Holds A Novel Place In Family Tree of Reusable Spacecraft is available to both Aviation Week & Space Technology and AWIN subscribers. Our award-winning editors bring news, analysis and ...

Using ESA's XMM-Newton satellite and NASA's Chandra X-ray observatory, astronomers have observed a young stellar object known ...

Lobster-eye satellite Einstein Probe captured the X-ray flash from a very elusive celestial pair. The discovery opens a new way to explore how massive stars interact and evolve, confirming the unique ...

Lobster-eye satellite Einstein Probe captured the X-ray flash from a very elusive celestial pair. The discovery opens a new ...

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

The lander, Blue Ghost, fired its engines for four minutes Thursday to propel the spacecraft into lunar orbit ahead of a ...

The International Space Station (ISS) is a science laboratory located in the Earth's orbit, which flies some 240 miles above Earth's surface at 17,500 miles an hour. The ISS is the work of five space ...

The U.S. Space Force's Space Launch Delta 45 unit facilitated a record-breaking 93 rocket launches from Cape Canaveral Space ...

NASA has conducted wind tunnel tests on the X-66 semi-span model to collect data about the aerodynamic forces that could affect the upcoming X-66 experimental aircraft. The test results will ...

(This story has been updated to add further context about NASA's decision last year on returning the crew.) Late Tuesday afternoon, Elon Musk put out a message on X saying that President Donald ...