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Japan's H3 Rocket: Fairing Failure Sends Satellite Tumbling
31 Jan
Summary
- H3 rocket's payload fairing detached unexpectedly minutes after launch.
- Satellite suffered damage and fell back to Earth in the Pacific.
- The exact cause of the fairing's premature separation remains under investigation.
Japan's H3 rocket mission on December 21, 2025, suffered an unusual setback when its payload fairing detached prematurely, leading to the loss of the Michibiki 5 satellite. The protective cone encasing the satellite separated approximately four minutes after liftoff.
This unexpected detachment caused visible damage to the satellite's panels and insulation, as captured by an onboard camera. The jolt also dislodged the satellite from its mooring, causing it to fall back to Earth and land in the Pacific Ocean.
While the root cause of the fairing's separation is still under investigation, JAXA noted a pressure drop in the second stage's hydrogen tank contributed to engine anomalies. This incident may impact Japan's future launch plans, including missions scheduled for 2026.
The H3 rocket, a successor to the H-2A, had a difficult debut in March 2023, but had since completed five successful missions prior to this failure.
