China launches plan for 3D satellite network to monitor sun and cosmic explosions
China has initiated an international project to establish a 3D satellite network between Earth and the moon, aiming to track solar activity and study cosmic explosions.
Intelligence analysis by Gemini 2.5 Flash

Led by the Deep Space Exploration Laboratory, this ambitious project plans to deploy 30 backpack-sized CubeSats into highly elliptical orbits within four years. The network, involving partners from five other countries, seeks to fill a critical gap in observing cislunar space and understanding space weather.
Imagine a team of tiny space scouts, like little LEGO bricks with cameras, that China is sending into space. Instead of just one scout, they're sending 30 of them to fly all around Earth and even near the moon. Their job is to watch the sun and big space explosions from many different angles, like having eyes everywhere, so scientists can better understand how space weather works and keep future moon trips safe.
Analysis
Deep Space Exploration Laboratory
The Deep Space Exploration Laboratory is spearheading China's ambitious international project to create a three-dimensional satellite network. This laboratory, which announced the project on Friday, is responsible for leading the development and deployment of the constellation. Its primary goal is to establish a comprehensive observation system that can track solar activity and study powerful cosmic explosions, thereby enhancing humanity's understanding of the universe.
The laboratory emphasized that this constellation is designed to address a significant global deficiency in the systematic observation of cislunar space. By providing continuous and multi-point data, the project aims to offer unprecedented insights into a region that is increasingly vital for future human endeavors in space. This leadership role underscores China's growing influence and capabilities in advanced space science and technology.
30 CubeSats
The core of this new network involves the deployment of 30 backpack-sized CubeSats. These small, standardized satellites are planned to be launched into highly elliptical orbits around Earth over the next four years. Their strategic placement will allow scientists to observe energetic particles and magnetic disturbances originating from the sun as they traverse the cislunar region.
By having multiple satellites observing from different vantage points simultaneously, the project will enable a detailed, three-dimensional mapping of space weather development. This approach marks a significant departure from traditional methods that rely on individual spacecraft, which often leave vast areas of cislunar space unmonitored. The data collected by these CubeSats will be crucial for understanding and predicting space weather phenomena, which can impact Earth-based technologies and future space missions.
Cislunar Space
Cislunar space, defined as the region extending from low-Earth orbit to approximately 2 million kilometers (1.2 million miles) from Earth, is identified as a new frontier for human activity. The Deep Space Exploration Laboratory highlights its importance as a key region for future crewed missions to the moon and the eventual construction of lunar bases. Understanding this vast area is paramount for ensuring the safety and success of these ambitious endeavors.
Historically, scientists have faced challenges in comprehensively studying cislunar space due to reliance on single spacecraft, which inherently limits observational coverage. The planned 3D satellite network aims to overcome this limitation by providing a dense web of sensors. This systematic observation will allow for a much clearer picture of how space weather evolves and interacts within this critical zone, ultimately supporting the long-term sustainability of human presence beyond Earth.
Key points
- China has launched an international project to build a 3D satellite network between Earth and the moon.
- The network will monitor solar activity and study cosmic explosions, filling a global gap in cislunar space observations.
- The Deep Space Exploration Laboratory will lead the project, planning to deploy 30 backpack-sized CubeSats within four years.
- Participants in the project include Egypt, Indonesia, Senegal, Serbia, and Thailand.
- The initiative aims to track energetic particles and magnetic disturbances to understand space weather development, crucial for future lunar missions.
The project promises to significantly enhance global understanding and prediction of space weather, safeguarding future crewed missions to the moon and the development of lunar bases. International collaboration with five other nations could foster greater scientific exchange and shared advancements in space exploration.



