NASA, Boeing Chart Course for Starliner Return Review

Image shows 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 258 miles above western China.
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 on Wednesday, July 3, 2024. Photo credit: NASA

Engineering and spaceflight specialists from NASA and Boeing continue data analysis ahead of a decision this week on the path forward for the Starliner spacecraft’s return from the International Space Station.

NASA’s decision on whether to return Starliner to Earth with astronauts aboard is expected no earlier than Saturday, Aug. 24 at the conclusion of an agency-level review chaired by Ken Bowersox, the associate administrator of NASA’s Space Operations Mission Directorate. The agency flight readiness review is where any formal dissents are presented and reconciled. Other agency leaders who routinely participate in launch and return readiness reviews for crewed missions include NASA’s administrator, deputy administrator, associate administrator, various agency center directors, the Flight Operations Directorate, and agency technical authorities.

NASA will host a televised news conference following the review’s conclusion to discuss the agency’s decision and next steps. More information on the news conference will be shared once confirmed. After the agency-level decision, program and flight control teams will continue preparing for Starliner’s return, including training sessions and other actions as appropriate.

Ahead of the agency-level review, NASA and Boeing are working to finalize and present flight rationale to various teams across the community and to the program control board. Engineering teams have been working to evaluate a new model that represents the thruster mechanics and is designed to more accurately predict performance during the return phase of flight. This data could help teams better understand system redundancy from undock to service module separation. Ongoing efforts to complete the new modelling, characterize spacecraft performance data, refine integrated risk assessments, and determine community recommendations will fold into the agency-level review.

Alongside the crew members of Expedition 71, NASA astronauts Butch Wilmore, commander, and Suni Williams, pilot, continue supporting a host of research, maintenance, and other activities aboard the microgravity laboratory since arriving on Starliner on June 6.

NASA Adjusts Crew-9 Launch Date for Operational Flexibility

Image of NASA Crew-9 mission patch
NASA, SpaceX Crew-9 mission patch

NASA and SpaceX are targeting no earlier than Tuesday, Sept. 24, for the launch of the agency’s Crew-9 mission to the International Space Station.

This adjustment allows more time for mission managers to finalize return planning for the agency’s Boeing Crew Flight Test currently docked to the orbiting laboratory. Starliner ground teams are taking their time to analyze the results of recent docked hot-fire testing, finalize flight rationale for the spacecraft’s integrated propulsion system, and confirm system reliability ahead of Starliner’s return to Earth. NASA and Boeing continue to evaluate the spacecraft’s readiness, and no decisions have been made regarding Starliner’s return.

The Crew-9 launch adjustment also deconflicts the next SpaceX rotation with the upcoming Soyuz handover targeted for no earlier than mid-September. Teams are working to prepare the Crew-9 mission to be ready to launch from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida to deconflict with pad preparations for NASA’s Europa Clipper mission beginning this September at nearby Launch Complex 39A at the agency’s Kennedy Space Center. NASA also will adjust the launch of SpaceX’s 31st commercial resupply services mission to no earlier than mid-October.

The agency will host a media teleconference at 12:30 p.m. EDT, Wednesday, Aug. 7, with agency leadership to discuss ongoing operations, including NASA’s Crew-9, Crew-8, and Crew Flight Test missions.