Elon Musk, the founder of Tesla and SpaceX, named the reason for the explosion of the SN10 Starship prototype. He wrote about this on his Twitter account.

Musk explained that the SN10 engine had low thrust, likely due to partial helium ingestion from the fuel tank. He noted that due to the impact at a speed of 10 meters per second, the supports and part of the spacecraft skirt broke. At the same time, the entrepreneur emphasized that several fixes for SN11 tests are already being prepared.

Helium was used to address pressurization problems encountered in previous tests. Musk admitted that this option, which at the time seemed like a good idea, turned out to be a bad decision.

On March 4 of this year, the Starship SN10 prototype landed for the first time. During the tests, the spacecraft reached an altitude of about ten kilometers, performed planned maneuvers, re-started the engines before landing, and successfully completed it. Before that, all test flights ended with the explosion of the spacecraft upon landing. However, a few minutes after the successful landing, the Starship exploded.

After the explosion of the Starship SN10 prototype, Musk ironically noted that the spacecraft had landed successfully.

On December 9, 2020, and February 2, 2021, the Starship SN8 and SN9 samples successfully completed all tasks, except for landing: both crashed.

Currently, the SpaceX team in Boca Chica is preparing to test the next Starship SN11 prototype. It already has installed engines, and the launch is expected very soon.