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Masashi Okada

H3 project manager, JAXA

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Okada has said the H3 is still early in its development and that the team is committed to making it globally competitive.

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

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Leading the return-to-flight effort after the December 2025 failure

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