Orbital Security

Since the launch of the first satellite in 1957, the Low Earth Orbit (LEO) has undergone a profound transformation from a near-empty frontier into a congested and polluted environment shaped by decades of human activity. Non-functional satellites, spent rocket stages, and fragmentation debris from collisions and explosions have accumulated to a mass exceeding 14,700 tons. Critical events have amplified the scale of the problem, most notably China’s Anti-Satellite Test (ASAT) in 2007 and the 2009 collision between the U.S. Iridium-33 and Russia’s Kosmos-2251, which together generated nearly one-third of all catalogued debris in LEO.   This material is unevenly distributed but highly concentrated between 750 and 1,000 kilometres, an orbital belt central to Earth Observation and communications. Objects in this altitude range can persist for centuries, while in the Geostationary Orbit (GEO) debris may remain indefinitely, underscoring the long-term persistence of the hazard. Consequently, orbital space has shifted from an open frontier to a finite and polluted resource requiring collective governance.   This study examines the economic and political dimensions of space debris. It assesses the direct costs borne by operators, the cascading risks to terrestrial infrastructure such as Global Navigation Satellite Systems (GNSS) and weather forecasting, and the disproportionate challenges facing developing nations. It concludes by analysing potential responses, ranging from mitigation strategies to Active Debris Removal (ADR), within the broader framework of international governance and global equity.