Outside / inside view of the Gran Telescopio CANARIAS (GTC). Credits:... | Download Scientific Diagram
![Sharon Backhouse on Twitter: "The world's largest telescope has been closed for 22 days (Gran Telescopio Canarias (GTC): “the ash from the La Palma volcano is "like blades" that could damage the Sharon Backhouse on Twitter: "The world's largest telescope has been closed for 22 days (Gran Telescopio Canarias (GTC): “the ash from the La Palma volcano is "like blades" that could damage the](https://pbs.twimg.com/media/FBzbC6ZWQAM3O-_.jpg)
Sharon Backhouse on Twitter: "The world's largest telescope has been closed for 22 days (Gran Telescopio Canarias (GTC): “the ash from the La Palma volcano is "like blades" that could damage the
![The Gran Telescopio Canarias - GranTeCan or GTC, also known as the Great Canary Telescope. La Palma, Canary Islands, Spain Stock Photo - Alamy The Gran Telescopio Canarias - GranTeCan or GTC, also known as the Great Canary Telescope. La Palma, Canary Islands, Spain Stock Photo - Alamy](https://c8.alamy.com/comp/FWRJPH/the-gran-telescopio-canarias-grantecan-or-gtc-also-known-as-the-great-FWRJPH.jpg)