What are the challenges? Are Sunita Williams and Butch Wilmore alone inside the ISS? How long can they endure?

The United States may have landed on the moon first, but to achieve the most out of it, space exploration is really more of a ...

SpaceX launched a reduced two-man crew to the International Space Station (ISS) on Saturday, carrying supplies and two empty ...

Crew Dragon's two astronauts will join two Starliner fliers for a five-month tour of duty aboard the International Space ...

For the SpaceX launches, astronauts have begun a tradition of signing their names on the wall in the preparation room at the end of the crew access arm just before they enter the Crew Dragon. Hague ...

The "zero-g [gravity] indicator" that launched aboard SpaceX 's Crew-9 mission to the International Space Station on Saturday ...

NASA's Crew-9 looks different from the original plan. Now only an astronaut and a cosmonaut will launch onboard the SpaceX ...

Crew Dragon's two astronauts will join two Starliner fliers for a five-month tour of duty aboard the International Space ...

The original crew portrait for Crew-9 before the change in plans caused by returning CFT without crew. (Credit: NASA) ...

First, only two people rode into orbit on SpaceX's Crew Dragon spacecraft, rather than the usual complement of four ...

Oleg Kononenko has safely returned to Earth following a record-breaking year-long stint onboard the International Space ...

Also on board: Soyuz MS-26/72S commander Aleksey Ovchinin, Ivan Vagner and NASA astronaut Don Pettit, launched Sept. 11, along with Crew 8 commander Matthew Dominick, Mike Barratt, Jeanette Epps and ...