The steel backbone of ESO’s ELT

In Chile’s Atacama Desert, builders are assembling the steel frame of the ELT’s dome. 

The steel beams are pieced together into 70-tonne structures like giant steel Lego. The structures are brought to the top platform and pieced together.

This ELT update dates from May 2023.

Learn more about ESO’s ELT at: 

Watch our ELT playlist here.




Directed by: Martin Wallner
Editing: Martin Wallner
Web and technical support: Gurvan Bazin and Raquel Yumi Shida
Written by: Martin Wallner
Consultants: Bárbara Ferreira, Michele Cirasuolo
Music: Jon Kennedy – Toy Soldiers
Footage and photos: ESO, Davide Deiana, Guido Vecchia, L. Calçada, Angelos Tsaousis, Jose Porte, Fernando Carrasco, Rafael Huerta, Max Nadjar
Acknowledgements: Francisco Rodríguez, CIMOLAI


About the Video

Release date:8 June 2023, 17:00
Duration:01 m 00 s
Frame rate:25 fps

About the Object

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

Ultra HD (info)



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