# One Megawatt in Space Needs a Radiator the Size of Four Tennis Courts

- slug: one-megawatt-in-space-needs-a-radiator-the-size-of-four-tennis-courts
- date: 2026-03-30
- category: Space & Aerospace

A 100-kilowatt rack that fits in a small room needs 120 square meters of radiator to operate in orbit. The ISS, all 420 tonnes of it, produces less than 100 kilowatts average.

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