Space data centers—essentially floating server farms in orbit—are being hyped as the next frontier for AI, but most experts agree they won’t be a practical business for years. A weekend social media spat between Sam Altman and Elon Musk put that skepticism in the spotlight, with Altman calling out the gap between Musk’s ambitious timeline and the harsh economic realities.
Why space data centers are still a long shot
SpaceX’s plans to launch orbital data centers to run AI inference tasks are a key driver behind its $2 trillion valuation. Analysts argue this could power SpaceX’s own AI models or create an orbital cloud network. But entrepreneurs, Google’s orbital compute team, and engineers who’ve crunched the numbers all say the same thing: the math only works with far cheaper rockets and the ability to mass-produce high-powered satellites at low cost.
Starship’s role in making space compute viable
Musk’s response? SpaceX’s Starship rocket, which is targeting its 13th test flight as soon as July 16. If Starship achieves full reusability, it could finally make space data centers economical. But even if this test flight recovers both stages, operational reusability is likely years away—and space data centers will take a back seat to SpaceX’s NASA commitments and Starlink expansion.
SpaceX has also admitted Starship may not be fully reusable in the near term, meaning it would discard its second stage on each launch—killing the cost savings needed for space data centers. Musk’s claim that “we start flying them next year” ignores the bigger challenge: launching and manufacturing these satellites at scale. Most experts don’t see that happening until the 2030s.
