File:GranTelescopioDeCanarias7-24-2009.jpg

Summary
Spain's Queen Sofia and King Juan Carlos attend the official opening for the Gran Telescopio de Canarias (or GTC) the world's largest reflecting telescope at the observatory on the island of La Palma, in Spain's Canary Islands, 24 July, 2009.

The GTC was developed by Spain, Mexico and the University of Florida and measures 10.4-meters (34 feet, 1 inch) in diameter just larger than the Keck Telescopes on Hawaii's Mauna Kea (at 10-meters or 32.8-feet).

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