Flight controllers struggled Wednesday to open a stuck valve in a cooling loop at the International Space Station, as the 13 orbiting astronauts enjoyed a little time off after an intense week of ...

The Boeing Starliner, is set to undock from the ISS on June 22. This is a several day delay. During its current mission, the spacecraft has encountered a fifth helium leak and a stuck oxidizer valve.

CAPE CANAVERAL, Fla. -- Boeing's first astronaut-crewed flight into space has been called off due to a stuck valve on the spacecraft's rocket Monday, the United Launch Alliance announced. The ...

Marcia Dunn, AP Aerospace writer CAPE CANAVERAL, Fla. -- Shuttle Discovery's astronauts do not need to make an emergency spacewalk to fix a stuck valve at the International Space Station and can leave ...