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Is It Really Impossible To Cool A Datacenter In Space?

Scott Manley

Is It Really Impossible To Cool A Datacenter In Space?

Scott Manley explains the thermal balance of spacecraft and how a satellite could be configured to radiate away the heat from datacenter-scale computing in space. His rough numbers suggest it is feasible.

HN points to it as a convincing energy-budget analysis in debates over space datacenters, while debating its assumptions.

7 Hacker News mentions · 2026–2026

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