Uploaded August 2024 | Updated September 2026, 2 weeks ago

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We're building our Extremely Large Telescope (ELT) in the Atacama Desert, which boasts some of the darkest skies on Earth but is at the same time a very harsh environment.

That's why we're currently covering the ELT steel dome with special cladding, which includes insulating layers and sheets of aluminium. This will protect the ELT and its delicate optics from the external environment.

Learn more about ESO’s ELT at: elt.eso.org

Watch our ELT playlist here: youtube.com/playlist?list=PLSZ2Jv0bEZHy7el0mIrOMRKkhCw8pemaZ

Credits: ESO.

Directed by: Angelos Tsaousis.
Editing: Angelos Tsaousis.
Web and technical support: Gurvan Bazin and Raquel Yumi Shida.
Written by: Bárbara Ferreira.
Footage and photos: ESO, Angelos Tsaousis, Martin Wallner.
Music: Jon Kennedy – Boom Clack (Martin Brew Remix).


#ELT #BiggestEyeOnTheSky