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Thin Flat Lenses Could Unleash a Revolution in Space Telescopes

Space telescopes use traditional polished mirrors like ground telescopes, which are heavy, unwieldy, and expensive to build. A new type of flexible telescope lens could be lighter and larger, creating space telescopes that could collect 100 times more light than JWST. Instead of a single large, delicate telescope, the Nautilus Space Observatory would consist of a fleet of lighter, cheaper, identical spacecraft working together to produce images. They'd use thin diffractive lenses, which have been improved to the point that they can produce near-perfect image quality.

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