Uploaded October 2025 | Updated September 2026, 2 weeks ago
The exciting new 4MOST on the 4.1m VISTA telescope in Chile has just had its first light. It is a spectrograph instrument, that can analyse the light it receives from thousands of objects simultaneously. Let's talk about what the instrument is going to do, how it works, and what it observed in its first light.
↓↓↓ Links and more in full description below ↓↓↓
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LINKS:
Press release from AIP (lead institute): aip.de/en/news/4most-first-light
Harshwardhan Pathak images: https://telescope.live/user/46479
4MOST First Light: eso.org/public/announcements/ann25007
The Magic Behind 4MOST: eso.org/public/unitedkingdom/blog/4most
UoP Press Release: port.ac.uk/news-events-and-blogs/news/portsmouth-and-southampton-scientists-help-secure-the-first-capture-of-light-in-all-its-colours-from-cosmic-objects
VISTA: eso.org/sci/facilities/paranal/telescopes/vista.html
First Light Video: youtube.com/watch?v=UyQ2t4gf-ao
Hey team!
If there is some other cool topic in physics you think we should learn about together, leave a comment down below!
Until next time, stay safe.
SHOP FOR MERCH: chris-pattison-shop.fourthwall.com/en-gbp/collections/all
Please consider subscribing if you enjoyed the video, and you can also find me on BlueSky, Twitter and Instagram:
https://bsky.app/profile/cosmochris.bsky.social
twitter.com/chrisdpattison
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CHAPTERS:
0:00 - Intro
0:59 - What is 4MOST?
04:36 - 4MOST's Field of View
09:16 - First Light Observations
13:30 - Better Velocity Measurements
15:16 - Ending (including cat!)
The exciting new 4MOST on the 4.1m VISTA telescope in Chile has just had its first light. It is a spectrograph instrument, that can analyse the light it receives from thousands of objects simultaneously. Let's talk about what the instrument is going to do, how it works, and what it observed in its first light.
↓↓↓ Links and more in full description below ↓↓↓
You can buy me a coffee if you enjoyed this and want to support these videos. You don't have to though, no pressure. buymeacoffee.com/chrispattison
LINKS:
Press release from AIP (lead institute): aip.de/en/news/4most-first-light
Harshwardhan Pathak images: https://telescope.live/user/46479
4MOST First Light: eso.org/public/announcements/ann25007
The Magic Behind 4MOST: eso.org/public/unitedkingdom/blog/4most
UoP Press Release: port.ac.uk/news-events-and-blogs/news/portsmouth-and-southampton-scientists-help-secure-the-first-capture-of-light-in-all-its-colours-from-cosmic-objects
VISTA: eso.org/sci/facilities/paranal/telescopes/vista.html
First Light Video: youtube.com/watch?v=UyQ2t4gf-ao
Hey team!
If there is some other cool topic in physics you think we should learn about together, leave a comment down below!
Until next time, stay safe.
SHOP FOR MERCH: chris-pattison-shop.fourthwall.com/en-gbp/collections/all
Please consider subscribing if you enjoyed the video, and you can also find me on BlueSky, Twitter and Instagram:
https://bsky.app/profile/cosmochris.bsky.social
twitter.com/chrisdpattison
instagram.com/chrispattison22
CHAPTERS:
0:00 - Intro
0:59 - What is 4MOST?
04:36 - 4MOST's Field of View
09:16 - First Light Observations
13:30 - Better Velocity Measurements
15:16 - Ending (including cat!)
