Our country's DRO test satellite has achieved a series of breakthroughs in orbit in the past two years.

Reporters learned at the 2026 Zhongguancun Forum on Space Development and Utilization Technology, held on March 25th, that the three experimental satellites deployed by the Chinese Academy of Sciences for the autonomous exploration of the Earth-Moon space in a long-distance retrograde orbit have been conducting experiments in orbit for two years. They have successfully completed the first international low-energy entry into the Distant Retrograde Orbit (DRO), verifying the stable residence of spacecraft in DRO, low-energy consumption maneuvering, and celestial measurement and orbit navigation principles. A K-band inter-satellite link spanning 1.17 million kilometers has been established, making it the world's first spacecraft to complete a comprehensive visit to all Lagrange points in the Earth-Moon space in one go. It will play an important role in supporting lunar exploration and other areas in the future.