7 famous telescopes that changed astronomy | BBC Sky at Night Magazine
Top 10 Largest Space Telescopes in Orbit - History-Computer
The Design of Extremely Large Telescopes | WIRED
The most important telescopes in history | New Scientist
Extremely Large Telescope: The Biggest Eye on the Sky | Space
World's Largest Telescope Now Has a Construction Contract | Space
List of largest optical telescopes historically - Wikipedia
Extremely large telescope - Wikipedia
New telescopes could revolutionize astronomy, but at what price? - CSMonitor.com
File:Artist's impression of the European Extremely Large Telescope (15761494008).jpg - Wikimedia Commons
The 10 biggest telescopes on Earth | Space
History of the telescope - Wikipedia
The most important telescopes in history | New Scientist
The Worlds Biggest Telescopes Through History - From Galileo to Gran Telescopio Canarias - YouTube
History of the telescope - Wikipedia
Infographic: a closer look at Extremely Large Telescopes
Four new giant telescopes are about to rock astronomy | Astronomy.com
Southern African Large Telescope
Great Equatorial Telescope History | Largest Telescopes in the UK
Keck Observatory | observatory, Mauna Kea, Hawaii, United States | Britannica
The world's most powerful space telescope has launched at last
Tools: Optical Telescopes
Chile hilltop razed for world's largest telescope (Update)
