The test flight of Boeing’s Starliner capsule — which turned into a monthslong stay in space for two astronauts — was a debacle in the same league as shuttle disasters, NASA said.

NASA Administrator Jared Isaacman appeared to suggest that space shuttle Discovery may not be relocated to Houston's Johnson ...

The United States once poured money and political capital into a spaceplane concept that promised to take off from a runway, reach orbit in a single leap, and slash the cost of spaceflight. Instead of ...