European report warns of rising orbital collision risk

A senior space‑policy analyst at the International Space Agency’s annual conference cautioned that the growing congestion of Earth’s orbital environment could soon render several key orbital slots unusable. “I think we are going to lose the ability to use certain orbits,” the analyst said, highlighting the mounting risk of collision and debris in low‑Earth orbit (LEO) and the geostationary belt.

The warning follows a sharp rise in the number of active satellites, particularly from large constellations, and an increasing inventory of defunct spacecraft and spent rocket stages that remain in orbit. Experts noted that the cumulative effect of these objects could trigger a cascade of collisions—known as the Kessler syndrome—making it difficult to safely maneuver new payloads into those crowded regions. Agencies such as NASA, ESA, and the Russian Roscosmos are already reviewing orbital slot allocation and debris‑mitigation protocols to preserve operational access.

In response, the conference concluded with a call for coordinated international regulations and the development of active debris‑removal technologies. While the immediate impact on satellite launches remains uncertain, the consensus is that proactive measures are essential to maintain the long‑term viability of critical orbital pathways.