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the claim

Spacecraft shed waste heat only through thermal radiation because space is a vacuum.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that spacecraft shed waste heat only through thermal radiation because space is a vacuum?

Yes. A NASA education page explains that a vacuum removes convective and diffusive heat paths, leaving thermal radiation as what a spacecraft uses, and a Space Exploration Stack Exchange answer states radiation is the only method of removing excess heat from a conventional spacecraft in vacuum. A second Stack Exchange answer adds that heat is sunk into the cold of space via radiation.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked

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Evidence for · 3
NASA's Cosmicopia -- Ask Us - Space Physics - Heat, Temperature, and the Electromagnetic Spectrum
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NASA's Cosmicopia -- Ask Us - Space Physics - Heat, Temperature, and the Electromagnetic Spectrum. (n.d.). cosmicopia.gsfc.nasa.gov. https://cosmicopia.gsfc.nasa.gov/qa_sp_ht.html

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More for · 2
For a hypothetical high-power nuclear spacecraft, where does the waste heat go?
2015
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For a hypothetical high-power nuclear spacecraft, where does the waste heat go?. (2015). space.stackexchange.com. https://space.stackexchange.com/questions/12550/for-a-hypothetical-high-power-nuclear-spacecraft-where-does-the-waste-heat-go

How does a radiator work fast enough on a space craft?
Get citation
How does a radiator work fast enough on a space craft?. (n.d.). space.stackexchange.com. https://space.stackexchange.com/questions/51450/how-does-a-radiator-work-fast-enough-on-a-space-craft

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