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Left: the 4.3 – meter Discovery Channel Telescope operated by Lowell... | Download Scientific Diagram
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One of the mirrors of the James Webb Space Telescope Array that was in the X-ray and Cryogenic Facility for Testing [4256x2832] (xpost /r/technologyporn) : r/spaceporn
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Lowell Observatory's 4.3m Discovery Channel Telescope | Observatory, Lowell observatory, The university of toledo
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Photonics | Free Full-Text | Optical and Mechanical Performance and Feasibility Analysis of Meter-Level Corrector Lenses for Survey Telescope
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