7 famous telescopes that changed astronomy | BBC Sky at Night Magazine
Infographic: a closer look at Extremely Large Telescopes
Very Large Telescope (VLT) | Size, Facts, & Discoveries | Britannica
The most important telescopes in history | New Scientist
FAST: The World's Largest Telescope | A China Icons Video - YouTube
File:Artist's impression of the European Extremely Large Telescope (15761494008).jpg - Wikimedia Commons
European Extremely Large Telescope - Ramboll Group
How Do Telescopes Work? | NASA Space Place – NASA Science for Kids
List of largest optical reflecting telescopes - Wikipedia
The most important telescopes in history | New Scientist
New telescopes could revolutionize astronomy, but at what price? - CSMonitor.com
Chile hilltop razed for world's largest telescope (Update)
A brief history of Cincinnati Observatory and its heirloom telescope
In Depth | James Webb Space Telescope – NASA Solar System Exploration
Keck Observatory | observatory, Mauna Kea, Hawaii, United States | Britannica
Southern African Large Telescope
Tools: Optical Telescopes
History of the telescope - Wikipedia
History of the telescope - Wikipedia
Extremely Large Telescope: The Biggest Eye on the Sky | Space
:format(jpeg)/cdn.vox-cdn.com/uploads/chorus_image/image/44280802/eso1225a.0.0.jpg "The world's largest telescope is going to be built in Chile - Vox")
The world's largest telescope is going to be built in Chile - Vox
The Worlds Biggest Telescopes Through History - From Galileo to Gran Telescopio Canarias - YouTube
