ESO Picture of the Week: Fantastic 4MOST

by Harry Addison on 2025-07-23

On the 22nd July 2025, 4MOST featured in ESO's picture of the week. With work well underway to install 4MOST on VISTA, we were treated with an image of the installed fibre positioner, with the backlit fibres positioned to create the Fantastic 4 logo.

In addition to the image, ESO and 4MOST released a video showing the fibre positioner in action as it created the iconic logo. It reveals the precise and coordinated motion of the 2436 fibres as they moved gracefully into place.

ESO's picture of the week article, image, and video can be found at:

• Article and image: https://www.eso.org/public/images/potw2529a/
• Video: https://www.eso.org/public/videos/potw2529a/

This marks an exciting milestone in 4MOST's journey, highlighting the tremendous work and dedication from everyone involved over the years. A huge congratulations!