The crew of the Boeing CST-100 Starliner is inching closer to a potential return to Earth after significant progress in troubleshooting the spacecraft’s thrusters. Ground tests for the Starliner Reaction Control System (RCS) thruster at the White Sands Test Facility in New Mexico have been successfully completed, marking a critical step in the process. Boeing and NASA had been eagerly awaiting the results prior to planning for the spacecraft’s homecoming.
The testing aimed to analyze thruster performance and identify the reasons behind the de-selection of some thrusters during the mission, alongside understanding how returning these thrusters to service could affect the overall flight. The term “de-selected” indicates that some thrusters became non-operational during the mission, linked to pre-existing leaks in the helium tanks that control them. Even with these challenges, the Starliner has sufficient helium onboard—70 hours’ worth, far exceeding the seven hours required for a potential return.
Despite earlier statements that the spacecraft could return “right now” if necessary, officials have confirmed that they are not fully prepared for an immediate landing. The timeline for a return flight has shifted slightly, with the latest information suggesting that final inspections of the thrusters are in process, and readiness reviews will be taking place in the upcoming weeks. Boeing and NASA engineers are focused on ensuring that everything is in place for a nominal return of the Starliner with its crew, commander Butch Wilmore, and pilot Suni Williams.
This news brings a sense of optimism as teams work diligently to ensure the safe return of the Starliner following a series of delays. The dedication and effort of everyone involved hint at a brighter future for commercial space travel as challenges are met with innovation and resilience.
In summary, the testing completion opens up new possibilities for the Starliner’s return journey to Earth, with teams focusing on careful preparations to ensure a successful operation.