[NASA] NASA Decides to Bring Starliner Spacecraft Back to Earth Without Crew

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NASA Administrator Bill Nelson and leadership host a live news conference on Saturday, Aug. 24 at the agency’s Johnson Space Center in Houston to give a status update about NASA’s Boeing Crew Flight Test.

Credit: NASA

NASA will return Boeing’s Starliner to Earth without astronauts

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and

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aboard the spacecraft, the agency announced Saturday. The uncrewed return allows NASA and Boeing to continue gathering testing data on Starliner during its upcoming flight home, while also not accepting more risk than necessary for its crew.

Wilmore and Williams, who flew to the International Space Station in June aboard NASA’s Boeing Crew Flight Test, have been busy supporting station research, maintenance, and Starliner system testing and data analysis, among other activities.

“Spaceflight is risky, even at its safest and most routine. A test flight, by nature, is neither safe, nor routine. The decision to keep Butch and Suni aboard the International Space Station and bring Boeing’s Starliner home uncrewed is the result of our commitment to safety: our core value and our North Star,” said NASA Administrator Bill Nelson. “I’m grateful to both the NASA and Boeing teams for all their incredible and detailed work.”

Wilmore and Williams will continue their work formally as part of the Expedition 71/72 crew through February 2025. They will fly home aboard a Dragon spacecraft with two other crew members assigned to the agency’s SpaceX Crew-9 mission. Starliner is expected to depart from the space station and make a safe, controlled autonomous re-entry and landing in early September.

NASA and Boeing identified helium leaks and experienced issues with the spacecraft reaction control thrusters on

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as Starliner approached the space station. Since then, engineering teams have completed a

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, including reviewing a collection of data, conducting flight and ground testing, hosting independent reviews with agency propulsion experts, and developing various return contingency plans. The uncertainty and lack of expert concurrence does not meet the agency’s safety and performance requirements for human spaceflight, thus prompting NASA leadership to move the astronauts to the Crew-9 mission.

“Decisions like this are never easy, but I want to commend our NASA and Boeing teams for their thorough analysis, transparent discussions, and focus on safety during the Crew Flight Test,” said Ken Bowersox, associate administrator for NASA’s Space Operations Mission Directorate. “We’ve learned a lot about the spacecraft during its journey to the station and its docked operations. We also will continue to gather more data about Starliner during the uncrewed return and improve the system for future flights to the space station.”

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NASA’s Boeing Crew Flight Test astronauts (from top) Butch Wilmore and Suni Williams pose on June 13, 2024 for a portrait inside the vestibule between the forward port on the International Space Station’s Harmony module and Boeing’s Starliner spacecraft.

Credit: NASA

Starliner is designed to operate autonomously and previously completed two uncrewed flights. NASA and Boeing will work together to adjust end-of-mission planning and Starliner’s systems to set up for the uncrewed return in the coming weeks. Starliner must return to Earth before the Crew-9 mission launches to ensure a docking port is available on station.

“Starliner is a very capable spacecraft and, ultimately, this comes down to needing a higher level of certainty to perform a crewed return,” said Steve Stich, manager of NASA’s Commercial Crew Program. “The NASA and Boeing teams have completed a tremendous amount of testing and analysis, and this flight test is providing critical information on Starliner’s performance in space. Our efforts will help prepare for the uncrewed return and will greatly benefit future corrective actions for the spacecraft.”

NASA’s Commercial Crew Program requires spacecraft fly a crewed test flight to prove the system is ready for regular flights to and from the space station. Following Starliner’s return, the agency will review all mission-related data to inform what additional actions are required to meet NASA’s certification requirements.

The agency’s SpaceX Crew-9 mission,

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, will launch no earlier than Tuesday, Sept. 24. The agency will share more information about the Crew-9 complement when details are finalized. 

NASA and SpaceX currently are working several items before launch, including reconfiguring seats on the Crew-9 Dragon, and adjusting the manifest to carry additional cargo, personal effects, and Dragon-specific spacesuits for Wilmore and Williams. In addition, NASA and SpaceX now will use new facilities at Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida to launch Crew-9, which provides increased operational flexibility around NASA’s planned

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launch.

The Crew-9 mission will be the ninth rotational mission to the space station under NASA’s Commercial Crew Program, which works with the ********* aerospace industry to meet the goal of safe, reliable, and cost-effective transportation to and from the orbital outpost on *********-made rockets and spacecraft launching from ********* soil.

For more than two decades, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies, making research breakthroughs not possible on Earth. The station is a critical testbed for NASA to understand and overcome the challenges of long-duration spaceflight and to expand commercial opportunities in low Earth orbit. As commercial companies focus on providing human space transportation services and destinations as part of a robust

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, NASA’s Artemis campaign is underway at the Moon where the agency is preparing for future human exploration of Mars.

Find more information on NASA’s Commercial Crew Program at:

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-end- 

Meira Bernstein / Josh Finch
Headquarters, Washington
202-358-1100
meira.b*****@*****.tld / *****@*****.tld

Steve Siceloff / Danielle Sempsrott / Stephanie Plucinsky
Kennedy Space Center, Florida
321-867-2468
steven.p*****@*****.tld / *****@*****.tld / *****@*****.tld

Leah Cheshier / Sandra Jones
Johnson Space Center, Houston
281-483-5111
*****@*****.tld / sandra.p*****@*****.tld

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Last Updated

Aug 24, 2024

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Jessica Taveau

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