SpaceX has heavily promoted orbital data centers as a key part of its business vision, but researchers warn the technology faces fundamental physics challenges that may make it infeasible. The company featured the concept prominently in its June 2026 initial public offering (IPO) filing, helping drive its valuation to nearly $3 trillion in early trading. However, experts question whether the company can actually solve the cooling problem that makes operating data centers in the vacuum of space extraordinarily difficult.

Why Is Cooling Data Centers in Space So Hard?

Data centers on Earth are massive facilities that consume enormous amounts of electricity and water to keep their servers cool. They use air cooling and liquid coolant systems to transfer heat away from computer chips into the surrounding atmosphere. But space has no atmosphere, which creates a fundamental problem for orbital data centers. The only way to expel heat in the vacuum of space is through thermal radiation, a much slower and less efficient process than Earth-based cooling methods.

The scale of the challenge is staggering. Some scientists have calculated that properly expelling heat from a single orbital data center using thermal radiation would require approximately 2.15 million square feet of radiators. To put that in perspective, that's roughly equivalent to the floor space of 30 football fields dedicated solely to heat dissipation. Beyond cooling, orbital data centers would face additional obstacles including ultraviolet radiation that degrades radiator infrastructure, the difficulty of performing maintenance in space, the enormous weight and size of required equipment, and the growing risk of collisions with other satellites already orbiting Earth.

What Are the Regulatory and Competition Concerns?

Beyond the technical hurdles, experts worry that SpaceX's promotion of orbital data centers reveals a deeper governance problem. Unlike earlier satellite communication regulations such as the Communications Satellite Act of 1962, today's regulatory environment lacks the coordination needed to rigorously assess space technology claims before companies stake their valuations on them. Multiple government agencies currently oversee different aspects of satellite communication, including the Federal Communications Commission (FCC), the Federal Aviation Administration (FAA), the National Telecommunications and Information Administration (NTIA), and others. This fragmented approach creates regulatory gaps that companies can exploit.

"SpaceX and others can exploit regulatory gaps to serve their financial interests unless space communication policy catches up with the market," noted Lauren Tokos, a COMPASS Fellow at the Center for Technology Innovation at Brookings Institution.

Lauren Tokos, COMPASS Fellow, Center for Technology Innovation at Brookings Institution

There is also a competitive concern. SpaceX already dominates the commercial space launch market and provides launch infrastructure for competitors like OneWeb and Amazon's Project Kuiper. If SpaceX successfully develops the world's first orbital data center constellation, it could force AI companies and other tech competitors to rely on SpaceX for off-world computing power. Major AI companies including Anthropic and Google have already expressed interest in partnerships with SpaceX to develop orbital data centers, potentially giving SpaceX even greater market control.

What Else Is SpaceX Launching Quietly?

While SpaceX promotes ambitious long-term visions like orbital data centers, the company is also testing secretive new spacecraft with minimal public disclosure. In early June 2026, SpaceX launched a flying saucer-shaped reentry capsule called Starfall from Cape Canaveral Space Force Station. Unlike most SpaceX test flights, which are livestreamed to thousands of viewers, this mission was kept under tight wraps after the initial launch phase.

The Starfall capsule is roughly ten feet across and two feet tall, designed to serve as a microgravity laboratory for in-space manufacturing and research. On paper, SpaceX describes it as a vehicle that can deliver goods anywhere on the globe in the shortest time possible. However, the Pentagon has long expressed interest in using similar spacecraft to deliver military supplies and weapons globally, and SpaceX already holds defense contracts including one called Project Cargo involving its larger Starship rocket. The secretive nature of the Starfall test suggests military involvement, though SpaceX has not officially confirmed this.

How Should Regulators Approach Unproven Space Technologies?

• Improve Interagency Coordination: The Federal Communications Commission, Federal Aviation Administration, National Telecommunications and Information Administration, and other agencies need to work together to rigorously assess space technology claims before companies use them to justify massive valuations.
• Require Technical Proof of Concept: Companies should be required to demonstrate that proposed technologies like orbital data centers are scientifically feasible before promoting them in public filings or to investors, rather than relying on speculative claims.
• Monitor Anticompetitive Behavior: Regulators should watch for situations where vertically integrated space companies like SpaceX use unproven technologies to increase their market power over competitors who depend on their launch services.
• Consider Environmental Impact: Policymakers should evaluate the broader environmental consequences of expanded space activities, including the risk of orbital collisions, space debris generation, and impacts on astronomical observation from Earth.

Experts warn that orbital data centers may represent "greenwashing," where companies present environmental solutions that sound good but lack real feasibility. The prospect of deploying 1 million satellites in orbit could generate more space debris, increase collision risks, and potentially damage the night sky for ground-based astronomy. Without stronger governance and international coordination, the pursuit of orbital data centers could cause more harm than good, according to researchers studying space policy.