<![CDATA[This is why we call it the Extremely Large Telescope!]]>This is why we call it the Extremely Large Telescope!

This photo shows the massive structure that will hold the main mirror of our ELT. It was taken when the construction reached an important milestone: for the first time, the telescope’s structure was rotated horizontally by a few centimetres... by hand!

Read more: https://www.eso.org/public/images/potw2627a/

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📷 ESO/Cimolai

]]>https://forum.fedi.dk/topic/514cfb07-d7e3-4ede-9e69-8bb37aa0d5f1/this-is-why-we-call-it-the-extremely-large-telescopeRSS for NodeMon, 13 Jul 2026 01:12:52 GMTMon, 06 Jul 2026 07:13:14 GMT60<![CDATA[Reply to This is why we call it the Extremely Large Telescope! on Mon, 06 Jul 2026 07:13:36 GMT]]>If this seems small, remember that the entire structure currently weighs around 3500 tonnes, which will further increase up to 4600 tonnes once the mirrors and science instruments are installed.

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]]>https://forum.fedi.dk/post/https://mastodon.social/users/esoastronomy/statuses/116871791681966913https://forum.fedi.dk/post/https://mastodon.social/users/esoastronomy/statuses/116871791681966913Mon, 06 Jul 2026 07:13:36 GMT