![Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Stock Photo - Alamy Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Stock Photo - Alamy](https://c8.alamy.com/comp/2DA0NC1/largest-optical-reflecting-telescope-gran-telescopio-canarias-located-on-grassy-hilltop-against-cloudy-sky-at-astronomical-observatory-on-island-of-la-2DA0NC1.jpg)
Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Stock Photo - Alamy
![El Gran Telescopio Canarias por dentro, el mayor del mundo que nos acerca a los límites del Universo El Gran Telescopio Canarias por dentro, el mayor del mundo que nos acerca a los límites del Universo](https://s1.eestatic.com/2022/09/09/invertia/disruptores-innovadores/innovadores/investigacion/701940393_227052697_600x315.jpg)
El Gran Telescopio Canarias por dentro, el mayor del mundo que nos acerca a los límites del Universo
![10 years of the GTC: Amazing science with an astonishing telescope | Instituto de Astrofísica de Canarias • IAC 10 years of the GTC: Amazing science with an astonishing telescope | Instituto de Astrofísica de Canarias • IAC](https://www.iac.es/sites/default/files/styles/crop_rectangle_21x9_to_1280/public/images/news/folleto_gtc_10_aniv.jpg?h=fb815367&itok=DQTojVIl)
10 years of the GTC: Amazing science with an astonishing telescope | Instituto de Astrofísica de Canarias • IAC
![10 years of the GTC: Amazing science with an astonishing telescope | Instituto de Astrofísica de Canarias • IAC 10 years of the GTC: Amazing science with an astonishing telescope | Instituto de Astrofísica de Canarias • IAC](https://www.iac.es/sites/default/files/images/news/folleto_gtc_10_aniv.jpg)