Japan’s H3 Rocket Returns to Flight, Deploying 6 Satellites in Low-Cost Debut
Updated
Updated · The Associated Press · Jun 12
Japan’s H3 Rocket Returns to Flight, Deploying 6 Satellites in Low-Cost Debut
3 articles · Updated · The Associated Press · Jun 12
Summary
Japan’s H3 rocket reached its targeted orbit Friday and was believed to have successfully separated all six small satellites aboard, ending a grounding that followed a December failure.
The mission was the first flight of the new “30 configuration” — three LE-9 liquid-fuel engines and no boosters — a cheaper variant meant to make H3 more competitive.
The success was critical because H3, Japan’s flagship replacement for the near-perfect H-2A, had already suffered two failures, both tied to second-stage engine problems.
JAXA and Mitsubishi Heavy Industries want to raise H3 launches to six to eight a year as Japan seeks reliable commercial access to space for its broader program and national security.
On June 12, 2026, Japan achieved a major milestone by successfully launching the H3 No. 6 rocket from the Tanegashima Space Center. This event marked a significant comeback for Japan’s space program, which had faced several setbacks in the previous six months. Developed by Mitsubishi Heavy Industries, the H3 rocket is central to Japan’s goal of building a stable and commercially competitive space transport system, essential for both national interests and security. The successful use of the new '30 configuration' in this mission demonstrates Japan’s renewed confidence and ambition in the global space industry.