Technology & Science

December 22, 2025: Back-to-back Asian launch failures—Japan’s H3 and South Korea’s Hanbit-Nano

Within the same 24-hour window, Japan’s eighth H3 flight and South Korea’s maiden commercial Hanbit-Nano mission both suffered upper-stage anomalies, abruptly halting expansion plans for two of Asia’s newest rockets.

By Priya Castellano

Focusing Facts

  1. Japan’s H3-24L upper stage LE-5B-3 engine failed to reignite on its second burn, stranding the 4,800 kg QZS-5 navigation satellite and pushing the rocket’s record to 6 successes, 2 failures (25 % failure rate).
  2. Innospace’s 2-stage Hanbit-Nano broke up shortly after Max Q during its first orbital attempt from Brazil’s Alcântara site, destroying five cubesats from Brazil, India, and South Korea.
  3. JAXA formed a presidential task force on 22 Dec and froze all future H3 manifests—including the 2027 LUPEX Moon-lander mission—until the root cause is identified.

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