Japan successfully launched the first H3 rocket configuration powered exclusively by liquid fuel, placing six small satellites into Earth orbit and providing a new boost to the country’s space program.
According to the Japan Aerospace Exploration Agency (JAXA), the rocket lifted off at 9:55 a.m. local time from the Tanegashima Space Center, located in southwestern Japan.
The launch had originally been scheduled two days earlier but was postponed due to unfavorable weather conditions.
This mission utilized a version of the H3 rocket equipped with three main liquid-fuel engines and no solid-fuel boosters. JAXA stated that this configuration is simpler, lighter, and more cost-effective compared to other variants of the rocket.
The successful launch marks an important achievement for Japan’s space program, which has faced several setbacks in recent years. An H3 mission in December failed to place a satellite into orbit, while the rocket’s maiden flight in March 2023 ended unsuccessfully after the second-stage engine failed to ignite.
In addition, the sixth H3 mission had been delayed because of a technical issue discovered during rocket engine testing conducted last year.
Despite these previous challenges, today’s mission is considered a significant step forward in Japan’s efforts to develop a more reliable and competitive launch system. The success of this H3 configuration could further strengthen the country’s position in the global commercial space launch market.
With all six satellites successfully deployed into orbit, JAXA received further confirmation that the H3 program is moving in the right direction, paving the way for future scientific and technological missions.



