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Gemini telescope

The Gemini telescope is preparing for a night of astronomical observation. In the background is the Canada-France-Hawaii operated telescope.

The Gemini has a mirror of diameter 8.1 meters! These telescopes, among many other of the world's largest optical telescopes, sit atop Mauna Kea on Hawaii's Big Island at nearly 14,000 feet of elevation.

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Uploaded on April 15, 2010
Taken on April 4, 2010