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Speaker: Elisa Guerriero (UNIPA) Titolo: Development polishing process for bare aluminum mirrors to ARIEL space mission Abstract: ARIEL is the 4th medium-class mission of ESA’s Cosmic Vision Programme to see and to study the exoplanets’ atmospheres in VIS/IR. The technical innovation of the project is the use of bare aluminum for the mirrors. This material is light, cheap, and available