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Radiator

A surface that sheds a spacecraft's waste heat into space by infrared radiation — the only way to cool in a vacuum, where there is no air to carry heat away.

Knowledge connections

Sources

The primary and reference sources this topic draws on.

  • NASANational Aeronautics and Space Administration

    Mission data, planetary science, space telescopes, and public-domain imagery.

    Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.