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The Apollo passive radiators can dissipate ~2500 Watts into space. With most systems shut down, only ~500 Watts was coming from the remaining systems and the astronauts bodies.


Cool, thank you. So I read this as fundamentally, the heat they dissipated far exceeded the heat they produced. Do you mind opining on what similar figures would be with modest passive radiators and a typical data centre rack heat output?


No idea what the passive radiators might look like (50x the size of Apollo?), but an Nvidia GB300 NVL72 uses 120,000 watts.




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