NASA delays astronaut return from ISS due to Starliner safety issues

NASA has decided to return Boeing's Starliner spacecraft uncrewed due to safety concerns regarding its thrusters, which are essential for steering during reentry. This decision was made on August 24, following a flight readiness review that highlighted significant uncertainties about the spacecraft's mechanical performance. As a result, astronauts Barry Wilmore and Sunita Williams will remain aboard the International Space Station (ISS) until they can return on SpaceX's Crew-9 Dragon vessel in February 2025. The Starliner was launched on June 5 but faced delays due to issues with its helium-based propulsion system. NASA Administrator Bill Nelson emphasized the importance of safety, recalling past tragedies involving the Challenger and Columbia missions. The decision to keep the astronauts on the ISS reflects a commitment to ensuring their safety above all else. NASA's Commercial Crew Program, which aims to replace the retired Space Shuttle, has seen Boeing struggle with the Starliner, while SpaceX has successfully operated its Dragon capsule since 2020. Boeing's investment in the Starliner has surpassed $1.6 billion since 2016, and the spacecraft's success is crucial for the program's future. The Crew-9 mission is set to launch no earlier than September 24, with additional seats available for Wilmore and Williams, who have been conducting experiments aboard the ISS. The incompatibility of spacesuits designed for Starliner with SpaceX's Dragon vessel posed another challenge, further complicating the return of the astronauts.