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Japan Aerospace Exploration Agency (JAXA)

Japan Aerospace Exploration Agency (JAXA)

National space agency

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Japan's H3 rocket returns to flight with new booster-free design

New Capabilities

Co-developer and operator of the H3, responsible for the failure investigation

Japan retired its workhorse H-IIA rocket in 2025 and bet its access to space on a cheaper replacement, the H3. In December 2025 that rocket failed in flight and dropped a navigation satellite. On June 10, 2026, JAXA tried to fly again from Tanegashima Space Center.

Updated Yesterday