The H3 is a relatively new vehicle, with last month’s launch marking the eighth flight of Japan’s flagship rocket. The launcher falls on the medium-to-heavy section of the lift spectrum. The eighth H3 ...

Japan's H3 rocket lost its payload fairing around 4 minutes after launch, leaving a satellite exposed and hanging on for dear life.

Japan’s newest heavy-lift rocket completed a largely successful ascent in late 2025, yet failed to deliver its payload after ...

Japan’s H3 rocket suffered engine trouble on December 22, 2025, and failed to place a Japanese navigation satellite into ...

TOKYO (AP) — Japan’s space agency said its H3 rocket carrying a navigation satellite failed to put the payload into a planned orbit, a setback for the country’s new flagship rocket and its space ...