Starlink has announced plans to lower the orbital altitude of thousands of its satellites, a move aimed at improving safety amid growing congestion in low Earth orbit. In a New Year’s Day post on X, Starlink engineering vice president Michael Nicholls said the company will begin a “significant reconfiguration” of its constellation, reducing the altitude of approximately 4,400 satellites—nearly half of Starlink’s fleet—from about 342 miles (550 kilometers) above Earth to roughly 298 miles (480 kilometers). According to Nicholls, condensing the orbital shells will help reduce the overall likelihood of collisions, addressing increasing concerns about the risks posed by the rapidly expanding number of satellites circling the planet.
The decision follows several recent incidents that highlighted the dangers of an increasingly crowded orbital environment. In early December, a Starlink satellite reportedly passed within roughly 200 meters (656 feet) of a Chinese satellite that had been launched only days earlier. Nicholls attributed the near-miss to a lack of coordination between satellite operators and criticized what he described as negligence by operators at China’s Jiuquan Satellite Launch Center prior to the deployment of nine satellites. Separately, Starlink disclosed that one of its satellites experienced an anomaly two weeks ago and began tumbling toward Earth from an altitude of around 260 miles. The company said the satellite will burn up in the atmosphere and does not pose a threat to the International Space Station.
Low Earth orbit has become increasingly congested as satellite internet gains popularity as an alternative to traditional broadband technologies such as cable, fiber, and DSL, particularly in rural and remote areas. While Starlink dominates the market, other providers including Hughesnet, Viasat, Amazon’s Project Kuiper—now known as Amazon Leo—and China’s “Thousand Sails” constellation are also expanding their presence. There are currently nearly 12,000 active satellites in orbit, along with thousands of defunct ones, and that number is expected to grow rapidly in the coming years.
Nicholls also cited the current solar minimum as a factor behind the decision to lower Starlink’s satellites. During periods of reduced solar activity, Earth’s upper atmosphere becomes less dense, which reduces drag and allows satellites to remain in orbit for longer periods—potentially worsening congestion. By lowering orbital altitude, Starlink aims to shorten satellites’ “ballistic decay time” from more than four years to just a few months, allowing decommissioned spacecraft to reenter the atmosphere more quickly and reducing long-term risks in low Earth orbit.
