The International Space Station (ISS) is a closed ecosystem, and the biology inside it — including its microbial residents — ...

In a new study, terrestrial bacteria-infecting viruses were still able to infect their E. coli hosts in near-weightless ...

Outgoing space station commander Mike Fincke, a member of the returning Crew 11, turned the station over to cosmonaut Sergey ...

The early departure of Crew-11, leaving Williams as the only US astronaut aboard, also means NASA will be unable to perform ...

Crew-11's Crew Dragon capsule will leave the International Space Station (ISS) on Wednesday at 5 p.m. EST (2200 GMT) and ...

A planned spacewalk outside the International Space Station was scrapped because of what NASA called a "medical concern" with ...

It will be the first such evacuation in the space station’s 25-year history. NASA officials said the astronaut is stable.

NASA has never ordered a medical evacuation from space before, but the option has always been available at the International ...

Retired U.S. Navy captain and NASA astronaut Butch Wilmore and Dr. Farhan Asrar discuss NASA’s first medical evacuation from ...

In a rare move, NASA is cutting a mission aboard the International Space Station short after an astronaut had a medical issue ...

A member of the Crew-11 SpaceX mission suffered a medical event, prompting an early return to Earth for the four-person crew ...

Two NASA astronauts were scheduled to complete a six-and-a-half-hour spacewalk on January 8, but the agency has postponed it ...