Japanese H3 rocket fails to launch, losing navigation satellite

December 22, 2025 1:04 AM EST

TOKYO, ⁠Dec 22 (Reuters) - ⁠A ‍Japanese H3 rocket ‍could not put a ​government-run QZS-5 navigation ​satellite into its intended orbit after engine trouble, the ​Japan Aerospace Exploration Agency said ​on Monday.

Japan's flagship H3 ‌rocket, built by Mitsubishi Heavy Industries, failed ​in its ⁠inaugural launch in 2023 ‌but has succeeded in six ‌subsequent flights. A rocket launch ‌failure in Japan typically leads to months ‍of investigations that could delay ⁠the national space programme.

(Reporting by Kantaro Komiya; Editing by Christian Schmollinger)



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