Cerro Tololo Inter-American Observatory: Quick Facts

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Cerro Tololo Inter-American Observatory: Victor M. Blanco Telescope

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Laser Interferometer Gravitational-Wave Observatory Arecibo Observatory Very Large Telescope Royal Greenwich Observatory Palomar Observatory Mauna Kea Observatory FAST Jodrell Bank Observatory Keck Observatory Mount Wilson Observatory

View of the Andromeda Galaxy (Messier 31, M31).

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