Dyson sphere with mirrors
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What would happen if the entire inner surface of a Dyson sphere (not necessarily a solid shell, maybe a very dense swarm) would be coated into a highly reflective material?
Let's say it can reflect 99.9% at all wavelengths.
Would it cook the star in its own light?
This post was sourced from https://worldbuilding.stackexchange.com/q/82862. It is licensed under CC BY-SA 3.0.
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