What has delayed their return and what does it mean for the mission?
Astronauts Suni Williams and Butch Wilmore were supposed to have stayed on the space station for eight days
Suni Williams and Butch Wilmore are in no danger, but what has gone wrong with the spacecraft and what does this mean for their journey home?Starliner was launched on 5 June despite their being a small leak of helium gas. Helium is used to push propellent to the thruster systems used for maneuvering in space and slowing down to renter the Earth’s atmosphere.
Then on 18 June Nasa announced that Starliner would start its journey home at 22:00 EST on Wednesday 26 June . The space agency stressed that the astronauts were not stranded and that Starliner was certified to return to Earth in the event of an emergency on the ISS.The sequence of events raises questions about whether the launch should have gone ahead in spite of the leak.
That would have been tremendously expensive, as it would have involved taking the rocket off the launch pad and taking the propulsion system out of the spacecraft.
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