Japanese Science Missions at Risk Due to H3 Failure.

The failure of Japan's H3 rocket on its inaugural flight in March could delay several science missions, including two scheduled to launch on another rocket. The X-Ray Imaging and Spectroscopy Mission (XRISM), an X-ray astronomy spacecraft, and the Smart Lander for Investigating Moon (SLIM), a lunar lander, were scheduled to launch together as soon as May on an H-2A. Even if the H-2A is cleared to return to flight in the near future, it remains uncertain how long the H3 rocket will be grounded, which could affect a third mission, Martian Moons eXploration (MMX).