NASA Weighs Extending ISS Astronauts' Stay Due to Boeing Capsule Troubles

NASA is currently evaluating whether to extend the stay of two astronauts at the International Space Station (ISS) until early next year. The decision hinges on whether to send their problematic Boeing capsule back to Earth empty. Butch Wilmore and Sunita Williams, who were initially expected to be away for just a week, might return on SpaceX's next flight instead.

The astronauts' mission has been complicated by thruster failures and helium leaks in Boeing's Starliner capsule. These issues have cast doubt on the capsule's ability to safely return to Earth. NASA officials are analysing more data and expect to make a decision by the end of next week or the beginning of the following week.

SpaceX as an Alternative

If NASA opts for SpaceX, Wilmore and Williams would take seats on SpaceX's Dragon capsule, which is scheduled for a late September flight. This would mean bumping two of the four astronauts currently assigned to that mission. The switch would also require Boeing's capsule to depart from the ISS ahead of Dragon's arrival to free up a docking spot.

NASA's space operations mission chief, Ken Bowersox, stated, "We've got time available before we bring Starliner home and we want to use that time wisely." The thrusters in question are essential for maintaining the capsule's position during its descent from orbit.

Impact on Current Crew

The uncertainty over Starliner has already extended the current crew's mission by an additional month. Originally set to return this month, they will now stay until the end of September. Typically, ISS missions last six months, though some have extended up to a year.

Boeing has assured that Starliner can still safely bring the astronauts home. The company recently posted a list of tests conducted on the thrusters since liftoff. However, NASA prefers to keep SpaceX's current crew at the ISS until their replacements arrive, barring any emergencies.

Background and Future Plans

NASA hired both SpaceX and Boeing to transport astronauts after retiring its shuttles in 2011. SpaceX successfully launched its first astronaut flight in 2020. In contrast, Boeing faced numerous issues during its initial test flight without a crew in 2019, necessitating a do-over. These problems have cost Boeing over $1 billion to resolve before finally flying astronauts.

Wilmore and Williams are retired Navy captains with previous experience aboard the ISS. "They will do what we ask them to do. That's their job as astronauts," said NASA chief astronaut Joe Acaba.

NASA aims to have competing services and backup options for transporting astronauts. This strategy ensures flexibility and reliability in missions to and from the ISS.

The final decision regarding Wilmore and Williams' return will be made soon, taking into account all safety and logistical considerations.