NASA astronauts Butch Wilmore and Suni Williams will stay on the International Space Station (ISS) longer than planned because of problems with their Boeing Starliner capsule. Their return was supposed to happen in mid-June, but it has been delayed due to issues like thruster failures and helium leaks. NASA’s commercial crew program manager, Steve Stich, stated that a new return date has not yet been set. The main goal is to bring the astronauts back using the Starliner once these problems are fixed, though alternatives such as SpaceX’s Dragon capsule are being considered.

Engineers have tested a backup thruster and will keep investigating the causes of the malfunctions that happened on June 6 during the Starliner’s approach to the ISS. Initial findings suggest that worn-out seals might be causing the helium leaks and thruster issues, but more information is needed. Boeing plans to test the thrusters while the capsule is still docked at the space station. This mission is Boeing’s first crewed test flight, following an uncrewed test in 2019 and another test in 2022 with additional problems. SpaceX, which has been transporting astronauts since 2020, is also facing issues, as its Falcon 9 rockets are grounded due to an upper-stage failure. NASA has invested billions of dollars in companies like Boeing and SpaceX to ensure reliable transportation for astronauts to the ISS.