Japan's H3 Rocket Returns to Flight Successfully

Kathmandu. Japan's new generation flagship H3 rocket has returned to flight successfully with a low-cost version. This flight is considered an important achievement for Japan's space program, which has been facing challenges due to continuous failures.

According to the Japan Aerospace Exploration Agency (JAXA), the H3 rocket was successfully launched from Tanegashima Space Center in southwestern Japan on Friday morning. The second stage of the rocket has been confirmed to have successfully reached its target orbit, and it is estimated that six small satellites developed by universities and other institutions have been successfully separated.

This mission represented the first flight of the H3's new ‘30 configuration’. This version was operated with three liquid fuel LE-9 engines without any boosters and was developed with the aim of reducing costs and making it more effective in space competition. Its various models are designed to provide services according to customer needs.

The H3 rocket was developed with the aim of replacing Japan's old H-2A rocket, which has a nearly perfect success history. However, the new generation H3 had to remain grounded for a long time after suffering two failures in its initial stages.

In the first test flight in March 2023, the mission failed due to the second-stage engine failing to ignite. Then, in another launch in December, although it carried a navigation satellite, it could not deliver the satellite to its intended orbit due to a malfunction in the second stage.

After these failures, the H3 program was halted, and Friday's successful flight is seen as the first major comeback since then. This success is considered extremely important as Japan's future space plans, especially the Mars mission proposed for 2028, depend on this rocket system.

Meanwhile, the small Epsilon-S rocket series has also been delayed after a fire during a test in 2024, which had further challenged Japan's overall space program.

The H3 rocket, jointly developed by JAXA and Mitsubishi Heavy Industries, is now targeted to be launched six to eight times annually. This success is expected to help make Japan competitive in the global space market and compete with private companies like Elon Musk's SpaceX.