European Southern Observatory’s Post

After a 10,000 km journey across the world, the first 18 segments of M1 — the main mirror of ESO’s Extremely Large Telescope (ELT) — have safely arrived in their next home, the ELT Technical Facility at ESO’s Paranal Observatory in the Chilean Atacama Desert! Here are the key stages of their remarkable journey: ➡️ It began near Poitiers, France, where the segments were finished. ➡️ The segments then travelled by road to the port of Le Havre, where they set off across the ocean on 17 December 2023. ➡️ They arrived in Chile at the Antofagasta Terminal International port last week. ➡️ The segments then reached ESO’s Paranal Observatory on 12 January 2024, where they underwent extensive inspections to confirm they did not suffer any damage during transport. Once complete, the ELT’s M1 will be over 39 metres across. So large that it can’t be cast in one piece, it will consist of 798 hexagonal segments working together. Read more: https://lnkd.in/eJTWbndk 📷 ESO/F. Carrasco

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From #Mainz to the Atacama desert. What a ride. Looking forward to seeing the M1 mirror come together! 💙 #ZERODUR

Roland GEYL

GEYL Optical Consulting - President of FO-RS freeform optics association - Ex Safran REOSC

9mo

Ouf ! The task of transportation is not at all a negligible one within such contract for large optics. We remember the transportation of 8-m mirrors of the VLT.

Dr. Engelbert Hofbauer

Knowing the Limits - Pushing the Limits

9mo

Is or was there a significant delay in the schedule? I thought the telescope was supposed to be operational in 2024?

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Congrats to Safran Reosc for this world premiere which epitomises over 15 years of industrial innovation for ESO’s revolutionary project.

Eric Witteveen

Groupleader Assembly at VDL ETG Precision B.V.

9mo

Step by step... ESO will get there in the end, with some coöperation

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Thierry Batut. Roland GEYL congratulation for your contribution over the years. Roland GEYL, an honor to have tanked your geometrical optics exam at Institut d'Optique Graduate School !

Sandrine R.

Astronomy & Space Programmes, Bid, Project and Controls Management

9mo

Congrats and thanks for sharing this exciting journey !!! All the best for next steps.

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Jakob Sagatowski

Industrial Software Engineer & Content Creator

9mo

Exciting! ❤️

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Congratulations to the Safran Reosc team for this momentous achievement !

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