NASA faces uncertainty as it awaits Boeing's ability to resolve certification issues plaguing its Starliner spacecraft. After propulsion problems during Starliner's first crewed test flight in June 2024, NASA had to delay the next potential mission to the ISS to 2025. With the spacecraft's certification still incomplete, NASA is questioning if a second test flight will be necessary before regular missions can proceed. As a result, astronauts Sunita Williams and Butch Wilmore will now return to Earth on SpaceX's Crew Dragon in 2025, instead of the originally planned Starliner-1 mission. NASA's ISS operations will continue uninterrupted with the upcoming Crew-10 mission in February 2025, featuring astronauts Anne McClain and Nichole Ayers.