Astronauts Face Extended Stay at ISS Due to Boeing Capsule Issues

Two NASA astronauts will remain at the International Space Station as engineers work to resolve problems with their Boeing capsule. Originally planned for a mid-June return, their mission has been extended due to thruster failures and helium leaks. The return date has yet to be announced.

Already more than a month late getting back, two NASA astronauts will remain at the International Space Station until engineers finish working on problems plaguing their Boeing capsule, officials said Thursday.

Test pilots Butch Wilmore and Suni Williams were supposed to visit the orbiting lab for about a week and return in mid-June, but thruster failures and helium leaks on Boeing's new Starliner capsule prompted NASA and Boeing to keep them up longer. NASA's commercial crew program manager Steve Stich said mission managers were not ready to announce a return date. Engineers last week completed testing on a spare thruster in the New Mexico desert to try to understand what went wrong during docking and to prepare for the trip home. Five thrusters failed as the capsule approached the space station on June 6, a day after liftoff. Four have since been reactivated.

After the space shuttles retired, NASA hired private companies for astronaut rides to the space station, paying Boeing and SpaceX billions of dollars. This was the Boeing's first test flight with a crew aboard. SpaceX has been ferrying astronauts since 2020.

(With inputs from agencies.)