In its first test mission last summer flying astronauts, Starliner was forced by NASA to leave its crew aboard the ISS and return empty in September over problems with its propulsion system.

In its first test mission last summer flying astronauts, Starliner was forced by NASA to leave its crew aboard the ISS and return empty in September over problems with its propulsion system. A panel ...

But the flight was marred by propellant leaks and pressurization problems with the Starliner's propulsion system. After multiple extensions to carry out tests and analyses, NASA managers decided ...

Suni Williams and Butch Wilmore, the two NASA astronauts who rode to the space station months ago on the Boeing Starliner, are slated to come home in late March. Also aboard the station are NASA ...

The most notable issue was NASA's decision to leave Starliner crewless on its return trip due to propulsion problems. With SpaceX's Crew Dragon capsule gaining ground in the private spaceflight sector ...

Starliner astronauts Sunita Williams and Barry "Butch" Wilmore took a stroll outside the International Space Station on Thursday, marking their 239th day in orbit by carrying out a task originally ...