World's largest telescope dome takes shape | ELT updates

The dome of ESO's Extremely Large Telescope (ELT) begins to take shape. This is the largest telescope dome ever built. 

The structure is about 88 metres in diameter and nearly 80 metres high, giving the dome a footprint roughly equivalent to that of a football pitch.

The giant ELT dome will house the telescope and its interior structure, providing protection from the extreme environment of Chile's Atacama Desert.

Learn more about ESO’s ELT at:  

Watch our ELT playlist here.  



Directed by: Angelos Tsaousis
Editing: Angelos Tsaousis
Web and technical support: Gurvan Bazin and Raquel Yumi Shida
Written by: Bárbara Ferreira
Consultants: M. Wallner, R. Tamai
Music: Jon Kennedy – Any Road Up
Footage and photos: ESO, G. Hüdepohl (, L. Calcada, A. Tsaouis, J. Porte, M. Nadjar, I. Casas del Valle
Acknowledgement: CIMOLAI

About the Video

Release date:11 August 2023, 14:00
Duration:59 s
Frame rate:25 fps

About the Object

Name:Extremely Large Telescope
Type:Unspecified : Technology : Observatory : Telescope

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