The Earth’s orbit has become a major strategic issue, attracting the attention of world powers. In recent years, China has established itself as a key player in the space sector, with a steady stream of satellite launches.
This rapid expansion raises questions about the implications for the security and sustainability of the space surrounding our planet. Do Chinese satellites represent a persistent threat to the orbital balance? This article explores the current dynamics and challenges posed by this growing presence, while examining future prospects for orbital space management.
Mega-satellite constellation plans and logistical challenges
China is preparing to deploy two vast satellite constellations, Guowang and Qianfan, each comprising 10,000 satellites. These ambitious projects will require more than a thousand rocket launches to complete. However, these initiatives raise major logistical concerns, not least because of the increased risk of space debris. Rocket upper stages could remain in orbit for more than a century, increasing the danger of collisions.
This situation is reminiscent of the criticism levelled at SpaceX for its Starlink constellation, which has already disrupted some scientific observations. Space debris management is therefore becoming a crucial issue for the sustainability of space activities.
Space debris problems and criticism of Chinese practices
There are growing concerns about China’s space practices, not least because of uncontrolled rocket re-entries. In 2022, several launches for the Tiangong space station resulted in dangerous fallout, even forcing Spain to temporarily close its airspace. These incidents underline China’s lack of transparency in sharing crucial information on the trajectories of its spacecraft.
Experts are calling for better management of orbital debris, as the upper stages of Chinese rockets could remain in orbit for decades, increasing the risk of collisions. The international community is urging China to adopt more responsible practices to ensure global space safety.
Comparison with SpaceX and calls for international regulation
China’s space debris management practices contrast sharply with those of SpaceX. While SpaceX performs controlled re-entry for its Falcon 9 rockets, thereby limiting the risk of debris, China often leaves its upper stages in orbit for decades.
This difference accentuates the risk of collisions and fuels fears of the Kessler syndrome, where an accident could trigger a chain reaction of collisions. Faced with these challenges, some are calling for stricter international regulation. Global cooperation is essential to guarantee the sustainability of space, a common good whose preservation requires concerted, transparent efforts from all space players.
