Boeing Crew Flight Test Astronauts Butch Wilmore (L) and Suni Williams pose for a portrait inside the vestibule between the forward port on the International Space Station's Harmony module and Boeing's Starliner spacecraft on June 13, 2024. (NASA via AP)
Two astronauts who have been stranded in space for months won't be able to return to earth until March, NASA said on Dec. 17 as it announced the latest in a string of delays sparked by problems with their Boeing-designed Starliner spacecraft.
NASA said it needed more time to complete the processing of SpaceX's Dragon spacecraft, which is scheduled to arrive at the space agency's processing facility in Florida in early January.
Butch Wilmore and Suni Williams were initially expected to return within a week after traveling to the International Space Station (ISS) on NASA's Boeing Crew Flight Test mission in June.
Their mission was later extended after NASA decided to return the spacecraft empty in September after the pilots identified helium leaks and issues with the Starliner's reaction control thrusters on June 6.
NASA initially planned to launch the Crew-10 mission in February 2025, with Wilmore and Williams returning home by the end of that month alongside two other astronauts who arrived at the ISS on Sept. 29 aboard the SpaceX Dragon capsule.
The pair now face another delay, as NASA announced on Tuesday that Crew-10 will not launch until March 2025. By the time they return next year, they will have spent more than nine months in space.
"Fabrication, assembly, testing, and final integration of a new spacecraft is a painstaking endeavor that requires great attention to detail," Steve Stich, manager of NASA's Commercial Crew Program, said in a statement. "We appreciate the hard work by the SpaceX team to expand the Dragon fleet in support of our missions and the flexibility of the station program and expedition crews as we work together to complete the new capsule's readiness for flight."
NASA stated that it had considered using another SpaceX spacecraft but ultimately decided to wait until the Dragon spacecraft was ready and launch the Crew-10 mission in late March.
On Sept. 30, NASA launched the SpaceX Crew-9 Dragon capsule carrying NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov to join the Expedition 72 crew at the ISS to do research, technology demonstrations, and maintenance activities. Another two seats on the capsule were saved for Wilmore and Williams.
NASA stated Tuesday that Crew-9 will return to Earth only after Crew-10 arrives at the orbital laboratory for a handover period.
According to the space agency, Crew-9 will "share any lessons learned with the newly arrived crew and support a better transition for ongoing science and maintenance at the complex" during the handover period. NASA did not specify the duration of the handover process.