The primary mirror of ESO’s Extremely Large Telescope (ELT) will consist of 798 segments working together as a single, gigantic 39-metre mirror. This video shows you the sophisticated sensors and actuators that will keep these segments aligned with nanometric accuracy. Download this video (various formats available) on: https://www.eso.org/public/videos/elt... Discover more about ESO’s ELT at: https://elt.eso.org/ Watch our ELT playlist here: https://www.youtube.com/playlist?list... Credits: ESO Directed by: Angelos Tsaousis Editing: Angelos Tsaousis Written by: Bárbara Ferreira Music: Jon Kennedy – Do As You Did. Footage and photos: ESO, L. Calçada, A. Tsaousis, CIMOLAI/S. Petković. Web and technical support: Gurvan Bazin and Raquel Yumi Shida Acknowledgments: FAMES (MicroEpsilon, Fogale) consortium.
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