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Boeing Struggles to Resolve Starliner Thruster Issues, Delaying Astronauts' Return

NASA and Boeing engineers continue to analyze data from ground tests to ensure the spacecraft's safe return from the ISS.

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Boeing’s Starliner spacecraft that launched NASA’s Crew Flight Test astronauts Butch Wilmore and Suni Williams to the International Space Station is pictured docked to the Harmony module’s forward port. This long-duration photograph was taken at night from the orbital complex as it soared 256 miles above the Arabian Sea off the coast of Mumbai, India. Credit: NASA
Boeing Starliner
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Overview

  • Starliner has been docked at the ISS since June 6 due to thruster failures and helium leaks.
  • Astronauts Butch Wilmore and Suni Williams remain on the ISS, awaiting clearance for their return.
  • Recent ground tests replicated inflight conditions to understand the thruster malfunctions.
  • NASA confirms that Starliner can safely return in an emergency, but thorough checks are ongoing.
  • The spacecraft's return date is still undetermined as engineers dissect test results.