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Originally Posted by ThunderStorm
Thanks for detailed explanation.
Assume the speed of debris same as bullets and small could not be detected beforehand, how do the space stations survive? (Assume the station build materials are strong enough?)
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The space environment in low Earth orbit is well known so spacecraft, and especially long term spacecraft like the ISS, are designed to be able to survive relatively frequent small impacts.
Here's a PDF from Nasa which explains some of the protection systems:
https://www.nasa.gov/externalflash/ISSRG/pdfs/mmod.pdf
And here's a story from NSF talking about some specific incidences of impact damage:
https://www.nasaspaceflight.com/2014...mmod-radiator/