Overview
- JAXA launched H3 No.6 on Friday, June 12, and the rocket successfully placed six small satellites into their planned orbit.
- The No.6 vehicle flew in the new '3-0' configuration, meaning three liquid-fuel main engines and no solid rocket boosters, a first for a large domestic Japanese launch.
- An interim JAXA investigation into the December 22, 2025 H3 failure identified an adhesive separation in the payload-adapter joint and JAXA repaired affected parts before resuming flights.
- No.6 was a lower-cost test flight that did not carry high-value large satellites, a deliberate choice to validate the revised hardware and procedures.
- The government hailed the success and discussed much higher launch-rate goals while analysts note Japan still needs sustained reliability, stronger supply chains, and a path to compete with established commercial providers.