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Contact: Daniel Stolte
University of Arizona

Polishing GMT Mirror #1

Caption: The first of seven mirrors for the Giant Magellan Telescope being polished at the UA Steward Observatory Mirror Laboratory. The polishing head, shown center, changes shape to match the curvature of the mirror as it moves across the surface.

Credit: Ray Bertram/University of Arizona

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Related news release: World's most advanced mirror for giant telescope completed

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