HOUSTON—NASA and Boeing are moving the CST-100 Starliner Crew Flight Test mission’s return to Earth into July to accommodate further evaluation of the spacecraft’s propulsion system as well as a pair of upcoming spacewalks, according to an agency update issued late June 21. The Starliner crew, NASA...

Boeing's new Starliner capsule and an inaugural two-member NASA crew safely docked with the International Space Station on Thursday, meeting a key test in proving the vessel's flight-worthiness and sharpening Boeing's competition with Elon Musk's SpaceX.

The troubled vehicle is one of two that the agency selected through its Commercial Crew program to ferry astronauts to space.

Technical glitches with the spacecraft have left two NASA astronauts, Butch Wilmore and Suni Williams, in limbo onboard the International Space Station (ISS).

Boeing’s CST-100 Starliner, its long-awaited spacecraft designed to go back and forth to orbit like the space shuttle used to, is stuck at the International Space Station (ISS). After it was supposed to launch its first crewed mission on May 6,

Boeing's Starliner is rated to stay in space for 45 days on its historic first astronaut mission, but that's going to be extended soon. Ground testing on its thrusters will start as soon as July 2.

The return of Starliner has been indefinitely delayed, but NASA and Boeing say the astronauts will use the spaceship to get home — eventually.