Satellites used to be rare, expensive and individually licensed. Not anymore. The shift to mega-constellations, systems of hundreds to thousands of spacecraft, has outpaced the rulebooks written for a quieter orbit, and the strain now shows in three places at once: the radio spectrum, the debris field, and the 1972 Liability Convention that still governs who pays when things go wrong.
Spectrum First
The International Telecommunication Union coordinates spectrum through filings, with priority to whoever files first and coordinates successfully. That machinery was built for tens to hundreds of geostationary satellites, not thousands of low-orbit spacecraft across dozens of operators. The Ku-band and Ka-band ranges, roughly 12-18 GHz and 26.5-40 GHz, that broadband satellite internet prizes are now contested all at once by SpaceX Starlink, Amazon Kuiper, Telesat Lightspeed, plus OneWeb, and operators have hedged further by filing for large volumes of V-band spectrum, 40-75 GHz, which raised ITU concerns about “spectrum warehousing” – claiming more spectrum than can realistically be used, simply to block competitors. The FCC has answered with deployment milestones, requiring licensees to launch a set share of the constellation inside a fixed window of years, and radio astronomers have flagged interference in bands adjacent to their protected ones.
Then the Debris
The old guideline, the “25-year rule”, told low-orbit satellites to come down within 25 years of end-of-life. In 2022 the FCC tightened that to 5 years for satellites operating below 2,000 km. More satellites also mean more reentries, planned and anomalous; standard practice in the major licensing jurisdictions sets casualty risk thresholds at 1 in 10,000 per reentry event. The deeper worry is arithmetic: more spacecraft in the same altitude bands mean more conjunctions, more avoidance maneuvers and a higher probability of collisions that generate debris, the cascade known as the Kessler Syndrome. Operators still lack an internationally standardized way to coordinate maneuver plans, so resolving one conjunction can create another.
An Old Liability Regime
The Liability Convention of 1972 makes launching states absolutely liable for damage on Earth’s surface and liable on fault for damage in orbit. A single operator with hundreds of satellites under one national license can generate liability exposure that financial responsibility requirements, calibrated launch by launch, were never sized for. The Starlink-OneWeb close approach of 2021 showed the gaps: coordination between operators is thin, and disputes over maneuvering costs and disruption carry commercial weight. The Outer Space Treaty adds a chain problem, since states answer for their nationals while commercial operators span jurisdictions, launch providers and registries.
Where This Goes
Modernization is incremental. The FCC’s 5-year rule, updated ITU coordination provisions for non-geostationary systems, and tougher national licensing conditions all point the same way, but adaptation keeps lagging deployment. The likelier near-term fix is operator self-coordination through industry bodies, with binding international agreement on traffic management and liability left to diplomacy that has so far not delivered. The orbit, meanwhile, keeps filling.
Sources
- Mega-Constellation Regulatory Challenges: Spectrum, Debris, and Liability
- Orbital Congestion: Rising Challenges in the New Space Race
