The smallest ELT mirror is a big challenge | ELT Updates

The ELT’s M5 mirror blank has been completed. M5 is the smallest mirror on the telescope, but it has a big task: through a tip-tilt system, it can adjust its position to compensate for atmospheric turbulence and other factors, and yield extremely sharp images. To do this without breaking, the mirror blank needs to be very stiff and very lightweight at the same time — and made of a special material, which you can discover in this video. 

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
Footage and photos: ESO, L. Calçada, A. Tsaousis, M. Wallner.
Music: Jon Kennedy – A Tale of Pizzicato.
Acknowledgement:  Mersen-Boostec.

About the Video

Release date:15 May 2024, 17:00
Related announcements:ann24008
Duration:58 s
Frame rate:25 fps

About the Object

Name:Extremely Large Telescope
Type:Unspecified : Technology

Ultra HD (info)



Video Podcast
14.2 MB

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