Avant de scruter l’Univers, il faut transformer des millions de lignes de code en mesures physiques.

Plongée dans les coulisses de la mission Euclid et de son segment sol scientifique, piloté par le CNES

https://cnes.fr/actualites/euclid-coulisses-de-production-de-premiere-livraison-de-donnees

// "realbooks aren´t real" @by #pastagang

https://nudel.cc/s.html?r=vodka-lasagne-bolognese-farfalle-bolognese

**The First Six Books of the Elements of Euclid by Euclid and John Casey**

"_Read or download for free_"

https://www.gutenberg.org/ebooks/21076.

#ProjectGutenberg #Euclid #Maths #Mathematics #Math #Read #Download #Book #Ebook #Bookstodon @bookstodon

Soirée spéciale à Paris : on explore l’espace avec Webb, Hubble et Euclid. Conférence gratuite à la Bibliothèque Valeyre.
https://unidivers.fr/event/bibliotheque-valeyre-paris-paris-2025-09-29t2300000200/
#espace #astronomie #science
#astrophysique #télescopes #conférence
#JWST #Hubble #Euclid
#Paris2025
#NASA

#ESAEuclid launched two years ago. This seems both like yesterday and a long time ago:

https://www.euclid-ec.org/second-anniversary-of-euclid-in-space/

Blimey. It's two years to the day since #Euclid was launched. telescoper.blog/2023/07/01/c...

Countdown to the Euclid Launch

Let Wednesday begin! #EAS2025 #Euclid

If you want to read the most famous math text book ever, the "Elements" by Euclid, which kind of defined mathematics for 2000 years, here is a free version, Koine Greek and modern English, translation by Richard Fitzpatrick.
https://farside.ph.utexas.edu/books/Euclid/Euclid.html

Last Remarks

On Friday (9th May), the last day of undergraduate teaching at Maynooth, I gave the last lecture in my module on Particle Physics. I actually finished the syllabus on Tuesday (6th) so the final one was more a revision class than a lecture. I used it to go through some past examination questions and (try to) answer some general points raised by the class.

What surprised me about this lecture was that, as has usually been the case, there was more-or-less a full attendance. Examinations in Maynooth start on Friday (May 16th), but the Particle Physics examination is not until May 27th, near the end of the examination period. I therefore expected that many students would be concentrating on their revision for their other modules, which have exams earlier in the season or finishing their projects (which are due in before the exams start). There were one or two absences, but most came anyway. In fact there was even an extra student, one of our MSc students. When I saw him at the back of the lecture hall I asked, jokingly, why he had come. He replied “I haven’t got anything better to do”. I wasn’t sure how to interpret that!

That lecture was at 11am. Later that day, at 3pm, I gave a Departmental colloquium (which had quite a big audience). The title was Euclid: The Story So Far and the abstract was

The European Space Agency’s Euclid satellite was launched on 1st July 2023 and, after instrument calibration and performance verification, the main cosmological survey is now well under way. In this talk I will explain the main science goals of Euclid, give a brief summary of progress so far, showcase some of the science results already obtained, and set out the time line for future developments, including the main data releases and cosmological analysis.

The audience for these talks is very mixed: experimental and theoretical physics staff, postgraduates and even some undergraduate students (including some who were in my lecture earlier) so it was quite a general talk rather than one I might give to an specialist astrophysics audience. If you’re interested you can find the slides here.

Having a quick cup of tea after the end of the talk and before I headed off to catch the train, I talked briefly with a student who is taking his final examinations at Maynooth this year. He told me that I had actually given the first lecture he attended when he had just started his first year and the colloquium was the last talk he would attend at Maynooth. That would be the case for quite a few students in the audience, I suppose, but it won’t be true for any in future: I am no longer teaching any modules taken by first year students, and I’ll be retired when the current first year students graduate…

Gestern war ich live bei Astro & Co mit einem Update zu #ESA #Euclid. Wir hatten gerade unseren ersten "Q1" Datenrelease von 63 Quadratgrad. Ich erkläre was dahinter steckt, welche Projekte schon gemacht wurde und wie man an die Daten kommt.

@hausderastronomie @ec_euclid

https://astrodon.social/@hausderastronomie/114292496344970435

ESA’s Euclid space telescope has made an extraordinary find – a perfect Einstein ring! This rare gravitational lensing event bends light from a galaxy 4.4 billion light-years behind it, producing an almost flawless ring thanks to a near-perfect alignment.

https://www.star.uliege.be/cms/c_13455437/en/euclid-lifts-the-veil-on-the-invisible-universe-a-first-harvest-of-gravitational-mirages