ESOcast 145 Light: First ELT Main Mirror Segments Successfully Cast (4K UHD) | ELT Updates
Channel: European Southern Observatory (ESO)
Date: 2018-01-09

The first hexagonal segments for the main mirror of ESO’s Extremely Large Telescope (ELT) have been successfully cast by the German company SCHOTT at their facility in Mainz. These segments will form parts of the ELT’s 39-metre main mirror, which will have 798 segments in total when completed. The ELT will be the largest optical telescope in the world when it sees first light in 2024.

This ESOcast shows the casting of the segments and explains how they form part of the ELT.

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.

More information and download options: http://www.eso.org/public/videos/eso1801a/

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Credit:
ESO.

Directed by: Nico Bartmann.  
Editing: Nico Bartmann.  
Web and technical support: Mathias André and Raquel Yumi Shida.  
Written by: Rosa Jesse and Richard Hook.  
Music: Music written and performed by: Astral Electronic - Gravity part 3 /New Horizons  
Footage and photos: ESO, ACe Consortium, SCHOTT.