Space travel presents unique physiological and psychological challenges for astronauts, including muscle weakening, bone loss ...

Ask any astronaut who has spent extended periods in the International Space Station what the most challenging part was, and ...

Astronaut Scott Kelly lost the nearly two inches of height that he gained during his record-breaking 340-day stay on the International Space Station after just two days back Earth-side.

The veteran Nasa astronauts completed 17-hour trip from the International Space Station (ISS) with a splashdown off Florida’s coast at around 5.57pm ET (9.57pm UK). The duo returned home on a SpaceX ...

So many problems cropped up on the way to the space station that NASA eventually sent Starliner back empty and ... safely on board, the side hatch was opened and the astronauts were helped out ...

And splashdown Crew 9 back on Earth ... Once safely on board, the side hatch was opened and the astronauts were helped out, one by one. Williams was next-to-last out, followed by Wilmore who ...

Certainly [we] deal with the personal side of it, but I can't let that ... NASA decided it was unsafe to send the astronauts back on the spacecraft, and it returned to Earth unmanned in September.