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Future Space Telescopes Could be Made From Thin Membranes, Unrolled in Space to Enormous Size
As we saw with JWST, it's difficult and expensive to launch large telescope apertures, relying on origami techniques to unfold the full mirror. A new paper proposes that telescope mirrors could be made out of a thin polymer that's only 200 micrometers thick. It could be rolled up inside a rocket fairing and then unrolled once it gets to space. This could allow apertures vastly larger than anything currently in space, with several working together as an interferometer.
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