The Limiting Factor
@LimitingThe · Dec 10, 2025
If radiative cooling in space wasn't commercially viable at scale and mutiple kilowatts, then Starlink wouldn't exist.
You don't need to go into the physics to prove this if the pudding is already out there.
Gavin Baker@GavinSBaker· Dec 10, 2025Starlink v3 will be 20 kilowatts and should have no thermal dissipation issues.
Elon’s stated plan is 100 kilowatts for each AI satellite; slightly less than a full Blackwell rack.
Starship should be able to lift 10 to 15 megawatts to sun-synchronous orbit per flight.
Elon Musk
@elonmusk
Exactly
12:17 AM · December 11, 2025 · 73.9K views
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