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Japan·Technology

Adhesive failure in satellite mount caused Japan's H3 rocket launch disaster, JAXA finds

Monday, 13 April 2026, 10:08 · 1 min read

Japan's space agency JAXA (the Japan Aerospace Exploration Agency) has concluded that the failure of an H3 rocket launch last year was caused by an adhesive separation in a component of the base used to mount the satellite. The detachment created a gap in the mounting structure, triggering the mission's failure. The finding is significant as the H3 is Japan's next-generation flagship launch vehicle, intended to replace the ageing H-IIA rocket and restore the country's competitiveness in the global space launch market.

Sources
NHK WorldH3ロケット打ち上げ失敗原因 衛星土台部品の接着剥がれる JAXA ↗︎
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