For those of you who are “nuclear curious”, the attack on Iranian nuclear sites could have resulted in trace amounts of radioactive material getting kicked into the atmosphere. The Earth’s atmosphere is a river that flows across the globe, and other places will “see” those isotopes with sensitive enough instruments.

Here is gamma radiation air monitoring open data, including data from #SNOLAB where I work. These data aid in nuclear non-proliferation.

https://remap.jrc.ec.europa.eu/Advanced.aspx

A perfect cloudy weather #astronomy friend to help me NOT reduce any data this #caturday ... a tremendous improvement really. #CatsOfFediverse #cats #science

“Over four months, LLM users consistently underperformed at neural, linguistic, and behavioral levels.”

https://www.media.mit.edu/publications/your-brain-on-chatgpt/

A fun read, 'The Star Poems' by Jesse Rae Archibald Barber would be my book recommendation of the week. Thanks @sundogplanets for posting it earlier! Now that I have finished it I would absolutely recommend for astro-art fans who enjoy cross-disciplinary #poetry, #languages, #astronomy etc. The thought and design are very well done. It also has full dual language throughout, here's a link where I got mine: https://www.indigo.ca/en-ca/acahkos-nikamowini-pikiskwewinathe-star-poems-nehiyawi-kisik-acimowina-cree-sky-narrative/9781778690174.html
#Astrodon #art #cree #space #linguistics #creelanguage #saturda

A magnificent armilary sphere at the Library of Congress, a globe surrounded by metal rings representing the orbits of the sun, moon, and stars around it. Constructed in 1543, the year Copernicus’s De Revolutionibus was published, it was in a sense obsolete the day it was made, though that would continue to be the subject of debate for some time. https://blogs.loc.gov/maps/2025/06/out-of-this-world-vopells-exquisite-armillary-sphere/

No need to drive me crazy. I can walk from here.

Bonjour ! Nouvelle instance, nouvelle #introduction !
Sterenn est une association d'astronomes amateurs basée à Quéven, près de Lorient, France. L'asso a été créée en 1983, il y a plus de quarante ans. Nos activités sont nombreuses : vulgarisation, partage de connaissances, animations, soirées publiques, expos... Nous avons également fabriqué certains de nos #telescope et taillons des miroirs... Observation et #astrophotographie quand le temps le permet. Nous nous retrouvons dans nos locaux deux fois par semaine, notamment le samedi après-midi. N'hésitez pas à nous rendre visite ! D'autres infos et formulaire de contact sur notre site internet : https://www.asso-sterenn.fr. Nous posterons nos réalisations, images et actualités régulièrement ici. Nous sommes présents sur Mastodon depuis le 6 novembre 2022.
Ah, j’oubliais l'essentiel : Sterenn signifie étoiles en breton...
Compte géré par @bilbo_le_hobbit
#astronomie

getting old and learning to chill properly is awesome, 10/10 would recommend.

very pleased to have solidly made it past 40 and found that so much can now be classified as 'dont worry about it' and 'if its not hurting anyone just let people be'... it turns out that super-go-emergency energy no-sleep use time can*, eventually, be scaled back. Seems like a selling point we should communicate better.

*admittedly, not always, not permanently, but still
#SaturdayVibes

One more big astro event before I am on my first sabbatical! A fair, in open air! First clear day June 24-July 4. Find tickets, info, maps and more here: https://www.yorku.ca/science/observatory/astrofair/

#astronomy #toronto #ontario #Astrodon #science #education #outreach #stargazing #planetarium #telescopes #YorkUniveristy @AllanICarswellObservatory

@LilahTovMoon you only live once, so my 2 cents is, dont worry about it. my european inlaws were so very, very unimpressed with rootbeer I one time had 6 floats to myself. no regrets!

Really enjoyed David Gerard's amusing take on how programming with AI becomes like a gambling addiction for many.

"Large language models work the same way as a carnival psychic. Chatbots look smart by the Barnum Effect — which is where you read what’s actually a generic statement about people and you take it as being personally about you. The only intelligence there is yours."

"With ChatGPT, Sam Altman hit upon a way to use the Hook Model with a text generator. The unreliability and hallucinations themselves are the hook — the intermittent reward, to keep the user running prompts and hoping they’ll get a win this time."

"This is why you see previously normal techies start evangelising AI coding on LinkedIn or Hacker News like they saw a glimpse of God and they’ll keep paying for the chatbot tokens until they can just see a glimpse of Him again. And you have to as well. This is why they act like they joined a cult. Send ’em a copy of this post."

https://pivot-to-ai.com/2025/06/05/generative-ai-runs-on-gambling-addiction-just-one-more-prompt-bro/

When we released post editing for #Mastodon, we first released a version that supported processing and displaying edits incoming from other servers, before releasing a version that flipped a switch allowing anyone to make edits. We're taking an identical approach with quote posts, as the upcoming 4.4 version of Mastodon will begin displaying quote posts from other servers and software. Once this is widely deployed on the network, 4.5 will bring the long awaited ability to quote posts.

APOD 2025-06-02: Veil Nebula: Wisps of an Ancient Supernova by Abdullah Alharbi - via Astronomy Picture Of The Day from NASA at https://apod.nasa.gov/apod/

Chien-Shiung Wu, who obtained experimental proof of parity violation in weak nuclear decay, was born #OTD in 1912. Her 1956 experiment involving the decay of Cobalt-60 confirmed that the weak interaction does not respect what many had assumed was a fundamental symmetry of nature.

waiting to hear back on my canadian citizenship this weekend by supporting my local cafe, fixing the telescopes and wacking the grass down to keep up with the neighbors, did I miss anything? #canada #canadian #toronto #fediverse #BecomingCanadian

Rubin #CommissioningNotes ✍️: Winter is coming.

It was a chilly week at Cerro Pachón in Chile. But our team kept up their commissioning and calibration work, continuing to bring NSF–DOE Rubin Observatory up to full operation as a cohesive system.

Commissioning is an important phase of any project. During this phase, we bring many complex physical & software systems together for the first time.

Calibrations help us understand how everything performs as a whole, and get us ready for operations!

Dear all, we moved the Euclid Consortium account to mastodon.social since astrodon.social will shut down in the near future.

We want to warmly thank @sebinthestars for hosting us on astrodon for the past years!

Until the shutdown our content continues to be visible at https://astrodon.social/@ec_euclid

Les rencontres astronomiques du printemps 2025, c'est parti! #Astrodon #RAP2025 #StarParty #telescopes #astronomy #astronomie