Space data centers could leave more satellites than stars in the night sky, a Columbia-led report warns

Space data centers could leave more satellites than stars in the night sky, a Columbia-led report warns

Roughly 19,000 satellites orbit Earth today, and full implementation of proposed data-center plans would raise the number in low Earth orbit more than 50-fold, the report finds [1]. SpaceX asked the Federal Communications Commission in January 2026 for permission to operate up to one million data-center satellites, and four other companies have since filed for several hundred thousand more, including Blue Origin and Starcloud [1]. The report cites a proposed Starcloud constellation of 88,000 satellites, a Blue Origin plan for up to 51,600 and an application from a company called Orbital for up to 100,000 [1]. SpaceX is also designing a 72-GPU rack for orbit, according to an earlier report (MLQ.ai coverage), and Starcloud was picked this week for a federal mission-authorization pilot (MLQ.ai coverage).

The authors also question the economics and weight claims. They write that SpaceX has suggested in regulatory filings that a 100-kW data-center satellite could weigh one tonne, while their own estimate for the power system alone is about 2.2 tonnes [1]. Heavier satellites mean more launches: the report estimates that maintaining an orbital fleet covering 10% of projected 2030 AI data center demand would take at least 700 Starship-sized launches a year, about two a day, for as long as the fleet operates [1]. Even so, it concludes that high costs are unlikely to block initial deployment, because companies may accept losses to establish market position [1].

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