![Sharon Backhouse on X: "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 X: "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 X: "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
![Canary Islands Selected as Alternative Spot for the Thirty Meter Telescope | Smart News| Smithsonian Magazine Canary Islands Selected as Alternative Spot for the Thirty Meter Telescope | Smart News| Smithsonian Magazine](https://th-thumbnailer.cdn-si-edu.com/fRREVSUcrXP26NlgeYV3rAp7CRo=/fit-in/1600x0/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/cb/5b/cb5b566e-929f-485c-b80c-747edd74f3f9/screen_shot_2016-11-01_at_25919_pm.png)
Canary Islands Selected as Alternative Spot for the Thirty Meter Telescope | Smart News| Smithsonian Magazine
![worlds largest optical telescope gran telescopio canaria La Palma canary islands canaries isles Stock Photo - Alamy worlds largest optical telescope gran telescopio canaria La Palma canary islands canaries isles Stock Photo - Alamy](https://c8.alamy.com/comp/FPENP3/worlds-largest-optical-telescope-gran-telescopio-canaria-la-palma-FPENP3.jpg)
worlds largest optical telescope gran telescopio canaria La Palma canary islands canaries isles Stock Photo - Alamy
![Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Palma in Spain stock photo Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Palma in Spain stock photo](https://us.images.westend61.de/0001499286pw/largest-optical-reflecting-telescope-gran-telescopio-canarias-located-on-grassy-hilltop-against-cloudy-sky-at-astronomical-observatory-on-island-of-la-palma-in-spain-ADSF19683.jpg)
Largest optical reflecting telescope Gran Telescopio Canarias located on grassy hilltop against cloudy sky at astronomical observatory on island of La Palma in Spain stock photo
![worlds largest optical telescope gran telescopio canaria La Palma canary islands canaries isles Stock Photo - Alamy worlds largest optical telescope gran telescopio canaria La Palma canary islands canaries isles Stock Photo - Alamy](https://c8.alamy.com/comp/FPENJJ/worlds-largest-optical-telescope-gran-telescopio-canaria-la-palma-FPENJJ.jpg)