https://youtube.com/watch?v=QqRREz0iBes
Most interesting part for me is that the 4 units from the Very Large Telescope are physically connected through light pipes to combine into the final image. (19:40)
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Aperture synthesis. It's why the giant ones aren't really getting made, because the cost of making a few smaller ones that are sync'd is so much lower, the chances for fricking something up is lower to boot. You can see this even in non-terrestrial 'scopes, part of what made the James Webb so groundbreaking especially when compared to Hubble (https://en.wikipedia.org/wiki/Hubble_Space_Telescope#Flawed_mirror).
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RIP Tom Scott
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Snapshots:
:ghostarchive.org
archive.org
archive.ph (click to archive)
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