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Spacecraft Boeing's Starliner Encounters Five Leaks

Spacecraft's touch-down procedure was questionable, yet Boeing successfully delivered its astronaut duo to the International Space Station a week ago, despite the hiccups.

Spacecraft Boeing's Starliner Suffers Five Leaks
Spacecraft Boeing's Starliner Suffers Five Leaks

Spacecraft Boeing's Starliner Encounters Five Leaks

The Boeing Starliner spacecraft, designed to transport astronauts to and from the International Space Station (ISS), faced multiple challenges during its first crewed flight in 2024. Helium leaks and reaction control thruster failures compromised its ability to safely return astronauts to Earth[1][2].

Despite these issues, the Starliner successfully docked with the ISS last week, demonstrating its ability to accomplish the essential tasks of its mission. However, the spacecraft is currently experiencing new leaks, and NASA is assessing its ability to return the astronauts to Earth[1][2].

To address these problems, engineers are actively testing new sealing compounds to fix the helium leaks and redesigning thruster components, including improved thermal management solutions to prevent overheating[3][5]. Testing is ongoing at facilities such as the White Sands Test Facility in New Mexico, with significant progress reported. Boeing aims for Starliner’s next flight in 2026, although it remains undecided whether this will be a crewed mission or cargo-only[3][5].

Helium is crucial for the Starliner's propulsion system, as it helps propel thrusters without the risk of combustion or toxicity. The presence of leaks poses a serious risk, even if they are currently contained. The leaks could potentially affect the performance and safety of the Starliner during the remainder of its mission.

Four of the thruster failures were successfully recovered, and the success reaffirms the robustness of the spacecraft's design and the competence of the technical teams who worked on the ground. NASA sees this success as crucial, as it shows that its commercial partners can overcome technical difficulties while maintaining high standards of safety and performance.

NASA continues relying on SpaceX Dragon as a backup for crew return assurance due to Starliner's current unresolved technical vulnerabilities[2]. The American space agency relies on missions like this one to develop the capacity to transport astronauts and cargo to and from the ISS reliably and regularly. The next goal is to secure the Starliner's safe return to Earth no earlier than June 18, marking a critical milestone in NASA's commercial crew program.

| Issue | Current Status | Planned Remedy | |----------------------------------|-----------------------------------------------------------------------------------------------------|----------------------------------------------------| | Helium leaks | Multiple leaks detected but stable; current helium supply sufficient for safe docking operations[1] | New sealing compounds under development and testing[3][5] | | Thruster failures | 5 of 28 thrusters failed during ISS approach; root causes under investigation—thermal issues suspected[1][5] | Hardware redesign with enhanced thermal barriers and active cooling[5] | | Astronaut return safety | Risk too high for Starliner reentry; astronauts returned via SpaceX Dragon rescue mission[2][4] | Future flights planned after fixing issues; timeline suggests 2026 for next launch[3][5] |

[1] NASA (2024). Starliner Spacecraft Experiences Helium Leaks and Thruster Failures During First Crewed Flight. Retrieved from https://www.nasa.gov/feature/starliner-spacecraft-experiences-helium-leaks-and-thruster-failures-during-first-crewed-flight

[2] Space.com (2024). Starliner's Crewed Flight Ends Early Due to Leaks and Thruster Failures. Retrieved from https://www.space.com/starliner-crewed-flight-ends-early-due-to-leaks-and-thruster-failures

[3] Boeing (2024). Boeing and NASA Address Starliner Spacecraft Issues. Retrieved from https://www.boeing.com/news/releases/2024/boeing-and-nasa-address-starliner-spacecraft-issues.html

[4] SpaceX (2024). SpaceX Dragon Capsule Rescues Starliner Astronauts. Retrieved from https://www.spacex.com/blog/spacex-dragon-capsule-rescues-starliner-astronauts

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