Starship engine failure during test may impact NASA's plans for return to the Moon
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Starship engine failure during test may impact NASA's plans for return to the Moon

A defect in one of the engines of the Starship, developed by SpaceX, could jeopardize the schedule established by NASA for sending astronauts back to the Moon. This incident occurred during the fourteenth test flight of the spacecraft, conducted in Texas.

Although the mission achieved significant milestones, such as the first commercial deployment of satellites, it was terminated a few hours ahead of schedule due to the unexpected shutdown of one of the three Raptor engines. This event may influence subsequent tests of the vehicle and, consequently, the Artemis program calendar.

The Raptor engine issue and NASA deadlines

Despite the failure, controllers managed to maintain the flight and execute the commercial satellite deployment after the Starship reached orbit and separated from the booster rocket. However, the problem gains great relevance due to the crucial role the vehicle will play in the lunar program.

SpaceX is developing a version of Starship intended to serve as a human landing system for NASA. This vehicle will rely on the same propulsion system to transport crew during activities on the lunar surface. For this reason, identifying the origin of the failure is essential.

According to aerospace engineer Dean Sladen of Accu Components, the degree of impact on development will depend on whether the problem is isolated to a specific part or indicates a design flaw requiring modifications across the entire fleet. Any adjustment to the engine that causes delays in upcoming flights, including the planned attempt to capture the vehicle with the launch tower arms after re-entry, will consume the existing schedule.

Dean Sladen, an aerospace engineer at Accu Components, told Reuters that the episode reignites focus on the Raptor engines. In its twelfth flight in May, one engine did not perform as expected, but in the following test in July, all engines operated during ascent.

Artemis 3 puts more pressure on Starship

A possible postponement will not only affect SpaceX's commercial plans, which also aims to expand its Starlink satellite network. For NASA, the most delicate issue lies in the company's participation in the Artemis program.

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NASA plans new Starliner test after recorded failures in 2024 flight
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NASA plans new Starliner test after recorded failures in 2024 flight

NASA announced on Monday (28) the plan to conduct two new missions to boost the operational entry of Starliner, the spacecraft developed by Boeing, which faced problems during a crewed flight in 2024.

The first flight will be conducted without astronauts and is scheduled for mid-2027. This test aims to confirm the modifications implemented after the setbacks of the previous mission before considering a new crewed flight, planned for 2028.

This decision was made months after NASA concluded an analysis of the 2024 crewed flight. The report pointed to failures on both the part of Boeing and the agency itself, warning that the mission could have resulted in a tragedy.

During the problematic flight, the propulsion system experienced failures. Consequently, NASA opted to return Starliner to Earth without a crew and contracted SpaceX to bring astronauts Suni Williams and Butch Wilmore back. These two remained at the International Space Station (ISS), an orbital laboratory located around the Earth, for more than nine months.

With this new schedule, the agency intends to apply the changes in an uncrewed mission before resuming the transport of people aboard. The next flight destined for the ISS is scheduled for December 2026. Jared Isaacman, NASA administrator, stated that this mission will enable the validation of recent corrections and the collection of data for subsequent phases.

Isaacman detailed the planning, stating: “From there, we will gather information, continue implementing the other recommended changes (…) and plan a Starliner 2 crewed mission in 2028.”

The resumption of Starliner is also linked to NASA's current dependence on SpaceX's Crew Dragon. Since 2020, this spacecraft has been the only American space vehicle used for trips to the ISS.

This situation may change in the coming years, as SpaceX has announced its intention to end the production of the Crew Dragon, which intensifies NASA's interest in having a secondary alternative for astronaut transport.

Additionally, Starliner may be used in missions destined for future commercial space stations, which are expected to succeed the ISS after its orbital decommissioning, anticipated around 2030. The new flight will serve to confirm whether the implemented corrections allow Starliner to proceed to a crewed mission.

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