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| On reflection: Artist's rendering of the M5 mirror and cell support structure that will be used on ESO's Extremely Large Telescope (ELT). Designed and manufactured by SENER Aerospacial , the support cell structure will have critical performances in terms of accuracy to ensure the stability of the flat elliptical mirror M5. Credit: SENER Aerospacial/ESO/L. Calçada. |
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