On Monday, China marked a significant leap in its space exploration capabilities with the inaugural flight of the Long March 12B carrier rocket. This new addition to China’s space fleet took to the skies from the Jiuquan Satellite Launch Center, successfully reaching its designated orbit and deploying the latest installment of the Spacesail Constellation communication satellites.
At a towering height of approximately 72 meters, the Long March 12B stands as China’s most powerful single-body rocket to date. The two-stage launch vehicle is equipped with 10 engines fueled by liquid oxygen and kerosene, collectively generating around 800 metric tons of thrust during liftoff. This immense power allows the rocket to transport payloads exceeding 20 tons into low-Earth orbit, showcasing a notable enhancement in China’s space launch capabilities.
The development of the Long March 12B began in September 2024, integrating cutting-edge technologies aimed at boosting both performance and efficiency. Key advancements include high-performance propulsion systems, lightweight structural designs, optimized fuel management, and autonomous flight-control software that can adapt to unexpected in-flight situations. Looking ahead, engineers are focused on testing the recovery and reuse of the rocket’s first-stage booster, with hopes of introducing a reusable variant of the Long March 12B in the near future.
This mission further advanced the Spacesail Constellation, a satellite network set in low-Earth orbit, intended to deliver high-speed broadband internet services globally. With over 160 satellites already in orbit, the project has ambitious plans to deploy more than 10,000 satellites by the year 2030, significantly enhancing global internet coverage.
The successful deployment of the Long March 12B and the expansion of the Spacesail Constellation represent another milestone in China’s rapidly growing commercial space sector. This progress underscores China’s aspirations to broaden its influence in global satellite internet services, supporting its long-term goals in space exploration and technology.