Why are Sunita Williams and Boeing’s Starliner still in space? | Explained Premium
The Hindu
NASA astronauts Sunita Williams and Barry Wilmore face delays, technical issues, and space debris threats on the ISS, dalying their return to Earth.
Story so far: Veteran American astronauts Sunita Williams and Barry (Butch) Wilmore, are still docked with the International Space Station (ISS) since June 6 after facing delays, space debris threats, helium leaks and technical glitches on the Starliner spacecraft on which they travelled.
The U.S Space Agency — National Aeronautics and Space Administration (NASA) — held a ‘space-to-earth’ news conference with the two astronauts on July 10 to receive an update on their mission’s progress. Both astronauts said they ‘felt confident’ that they could return to Earth on Starliner itself.
Also read | How Boeing can bring NASA’s Sunita Williams, Barry Wilmore back to Earth
“I have a real good feeling in my heart that this spacecraft will bring us home, no problem,” said Ms. Williams, while Mr. Wilmore said, “That mantra you’ve heard, failure is not an option.” He added that both crew members were staying on the ISS to test the spacecraft
NASA along with the space capsule’s manufacturer Boeing is evaluating Starliner’s propulsion system and the five small helium leaks in the service module. The team is conducting ground tests on identical thrusters at New Mexico’s White Sands Missile Range while another investigation is underway at NASA’s Marshall Space Flight Center in Alabama to determine why the propulsion system’s seal failed, leading to helium leaks.
The continued delay in Ms. Williams and Mr. Wilmore’s safe return, which was initially scheduled to begin on June 18, has piqued concerns across the world, including India. Apart from Ms. Williams and Mr. Wilmore, NASA astronauts Michael Barratt, Matt Dominick, Tracy C. Dyson, Jeanette Epps and Russian Cosmonauts Nikolai Chub, Alexander Grebenkin, and Oleg Kononenko are aboard the ISS.
Here’s a look at the attempted launches, what went wrong, and current efforts for the crew’s safe return
What began as a routine one-week mission for astronauts Sunita Williams and Butch Wilmore aboard Boeing’s Starliner capsule quickly escalated into an unexpected eight-month stay in space. After a successful launch in June 2024, their mission faced multiple technical failures, including thruster malfunctions and helium leaks, making it too risky to return using the Starliner. NASA’s solution? Delay their return until early 2025 aboard SpaceX’s Crew Dragon capsule. Despite the extended mission, Williams and Wilmore remained resilient, continuing their work on the ISS as NASA worked to resolve the situation.
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