The NASA astronauts splashed down on Tuesday in a SpaceX capsule after problems with a Boeing vehicle set in motion a ...

NASA astronaut Don Pettit has published a surreal video and photograph of Earth that resembles the ending of Christopher ...

In August, NASA officials decided that the Starliner spacecraft that had carried Ms. Williams and Mr. Wilmore to orbit would return to Earth empty. They then juggled astronaut assignments so that Ms.

As of March 14, the Starliner astronauts have been in space for 282 days, which means they missed a lot of major U.S. events.

Dr. Bernard Harris Jr.’s historic spacewalk sets the stage in his latest book, meant to be used as a guide and inspiration ...