Word: keck
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Dates: during 1990-1990
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...Silla, Chile. Pistons attached to the thin mirror can flex it in and out until a star is as focused as possible. The NTT has already produced some of the sharpest images ever taken from the ground. A comparable system will be used in other projects, including the giant Keck Telescope under construction atop Mauna Kea in Hawaii...