'We just ran out of time': Boeing Starliner astronauts on why their spaceship returned to Earth without them

Boeing's Starliner capsule might have been able to finish its mission as planned if time had been on its side. Starliner launched June 5 on its first-ever crewed flight, a trial run that sent NASA astronauts Suni Williams and Butch Wilmore to the International Space Station (ISS). The duo were supposed to live on the orbiting lab for just a week or so, but NASA extended their stay to about three months while studying thruster issues that cropped up during Starliner's rendezvous with the ISS. More

(Source: Space.com - Sep 15)