Extreme!!! Everyone loves extreme stuff and astronomers are no different. When it comes to telescopes, size matters. Moiya McTier goes through the biggest telescopes around and what astronomers are planning for in the next few decades. But increasingly astronomers are realizing that we can't just put telescopes wherever we want, the locals may not want us to construct gigantic machines on what can sometimes be sacred ground... ::More about this Video:: ► Green Bank Observatory: http://greenbankobservatory.org ► GMT: https://www.gmto.org ► TMT: https://www.tmt.org ► E-ELT: https://www.eso.org/public/usa/teles-instr/elt/ ► Arecibo drone footage by DJI 101: https://www.youtube.com/watch?v=yBLgYXytaP0 ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Background music by Thomas Bergersen "Final Frontier": http://www.thomasbergersen.com A note on comments- we always love to engage with you down below but aggressive, inappropriate, hostile and trolling comments directed at our junior scientists especially will be removed. ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Tabby's Star ► http://bit.ly/TabbysStar Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!