https://tv.dev.smatflow.academy/videos/watch/90eb4c17-77e2-4df1-b4ae-290ae4cc7459 When construction is done the ELT will be the largest optical telescope​ ever built -- a dome the size of a cathedral. The video is available in 4K UHD. The ESOcast Light is a series of short videos bringing you the wonders of the Universe in bite-sized pieces. The ESOcast Light episodes will not be replacing the standard, longer ESOcasts, but complement them with current astronomy news and images in ESO press releases. Credit:ESO. Directed by: Nico Bartmann. Editing: Nico Bartmann. Web and technical support: Mathias André and Raquel Yumi Shida. Written by: Ivana Kurecic and Calum Turner. Music: Konstantino Polizois ( [1] ). Footage and photos: ESO, G. Hüdepohl ( [2] ), L. Calçada and ACe Consortium. Executive producer: Lars Lindberg Christensen. Source : https://commons.wikimedia.org/wiki/File:ESOcast_176_Light.webm — ESO — licence CC BY. Fri, 04 Sep 2026 17:24:12 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tv.dev.smatflow.academy https://tv.dev.smatflow.academy/client/assets/images/icons/icon-1500x1500.png https://tv.dev.smatflow.academy/videos/watch/90eb4c17-77e2-4df1-b4ae-290ae4cc7459 All rights reserved, unless otherwise specified in the terms specified at https://tv.dev.smatflow.academy/about and potential licenses granted by each content's rightholder.