![The optical system of the Gran Telescopio Canarias (GTC) telescope is seen inside its dome at Roque de Los Muchachos observatory in the Spain's canary island of La Palma, July 24, 2007. The optical system of the Gran Telescopio Canarias (GTC) telescope is seen inside its dome at Roque de Los Muchachos observatory in the Spain's canary island of La Palma, July 24, 2007.](https://c8.alamy.com/comp/2D2T9WD/the-optical-system-of-the-gran-telescopio-canarias-gtc-telescope-is-seen-inside-its-dome-at-roque-de-los-muchachos-observatory-in-the-spains-canary-island-of-la-palma-july-24-2007-the-gtc-one-of-the-largest-and-most-powerful-telescopes-in-the-world-is-running-tests-and-should-be-fully-operational-in-2008-reuterssantiago-ferrero-spain-2D2T9WD.jpg)
The optical system of the Gran Telescopio Canarias (GTC) telescope is seen inside its dome at Roque de Los Muchachos observatory in the Spain's canary island of La Palma, July 24, 2007.
![The Gran Telescopio CANARIAS GTC, Roque de los Muchachos Observatory, La Palma, Canary Islands, Spain The Gran Telescopio Stock Photo - Alamy The Gran Telescopio CANARIAS GTC, Roque de los Muchachos Observatory, La Palma, Canary Islands, Spain The Gran Telescopio Stock Photo - Alamy](https://c8.alamy.com/comp/DC5RRC/the-gran-telescopio-canarias-gtc-roque-de-los-muchachos-observatory-DC5RRC.jpg)
The Gran Telescopio CANARIAS GTC, Roque de los Muchachos Observatory, La Palma, Canary Islands, Spain The Gran Telescopio Stock Photo - Alamy
![The Spanish 10.4 m GTC telescope in La Palma, Canary Islands. Courtesy... | Download Scientific Diagram The Spanish 10.4 m GTC telescope in La Palma, Canary Islands. Courtesy... | Download Scientific Diagram](https://www.researchgate.net/publication/43170596/figure/fig1/AS:302100031524879@1449037668364/The-Spanish-104m-GTC-telescope-in-La-Palma-Canary-Islands-Courtesy-of-GRANTECAN_Q320.jpg)
The Spanish 10.4 m GTC telescope in La Palma, Canary Islands. Courtesy... | Download Scientific Diagram
![Gran Telescopio Canarias, GranTeCan, GTC, the world's largest mirror telescope, Observatorio Astrofisico, astronomy, astrophysic Stock Photo - Alamy Gran Telescopio Canarias, GranTeCan, GTC, the world's largest mirror telescope, Observatorio Astrofisico, astronomy, astrophysic Stock Photo - Alamy](https://c8.alamy.com/comp/BHFE10/gran-telescopio-canarias-grantecan-gtc-the-worlds-largest-mirror-telescope-BHFE10.jpg)