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Arthur Loureiro

@cosmonist

aka, the grumpy ranting cosmologist. Galaxies of the Universe, UNITE! 🇧🇷 Cosmologist based in 🇸🇪 PI Researcher @ The Oskar Klein Centre & Imperial College visiting researcher. https://medium.com/@cosmonist He/Him - ENG & PT (Opinions all mine)

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06.05.2023
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Latest posts by Arthur Loureiro @cosmonist

Pedem moderação mas ai tem o Joel "Liberdade pra vender seu rim, meo" Pinheiro na lista de colunistas...

09.03.2026 12:29 👍 0 🔁 0 💬 0 📌 0
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Jornaleco de propaganda da classe dominante e que adora dar palco pra fascho pede moderação. Veja (não, não veja):

09.03.2026 12:29 👍 1 🔁 0 💬 3 📌 0
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Mulheres na ciência e as barreiras que ainda persistem - com Marcia Cristina Barbosa Integrante da Academia Brasileira de Ciências, Márcia Cristina Barbosa, fala sobre os desafios enfrentados pelas mulheres na produção científica

MULHERES NA CIÊNCIA | Quais as barreiras que mulheres enfrentam na produção científica brasileira? No Pauta Pública desta semana, a física Marcia Cristina Barbosa, reflete sobre os principais desafios do tema. Ouça

08.03.2026 18:01 👍 10 🔁 4 💬 0 📌 0
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What inspires someone to pursue physics for life?

From discovering general relativity to the encouragement of mentors, women in our community share the moments that shaped their journeys.

This #InternationalWomensDay we’re celebrating women advancing physics and inspiring the next generation. 🌟

08.03.2026 10:01 👍 210 🔁 55 💬 0 📌 1

🎯🎯

07.03.2026 09:55 👍 75 🔁 12 💬 1 📌 0
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Inside the Underground Safe Houses Sheltering Immigrants From ICE

We are at this stage of the Holocaust — in Ohio, which hasn’t gotten much attention recently.

“In Springfield, Ohio, some Americans have converted their basements and spare bedrooms into shelters for immigrant families who could be targeted in raids.”

#GiftLink courtesy of my library:

06.03.2026 19:00 👍 219 🔁 105 💬 5 📌 4
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Protecting Planet Earth’s Skies: A4E's Statement on Proposed Large Satellite Constellations - a4e.org Astronomers for Planet Earth (A4E) is an international grassroots movement of astronomy students, educators, amateurs and scientists, working to address the climate crisis from an astronomical perspec...

Astronomers for Planet Earth are submitting a statement about some of the proposed megaconstellations that would ruin ground-based astronomy to the FCC.

You can read the statement below: 🔭☄️

05.03.2026 12:47 👍 111 🔁 69 💬 1 📌 3
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Now…this is THE life, meus bacanos!

04.03.2026 18:20 👍 5 🔁 0 💬 0 📌 0
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Zoom into a cosmic eye 👁️

This video takes you on a journey through space to one of the most visually intricate remnants of a dying star: the Cat’s Eye Nebula 🐈‍⬛ also known as NGC 6543. 🔭 🧪

04.03.2026 08:33 👍 130 🔁 42 💬 3 📌 4
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Two observatories, one cosmic eye Two observatories, one cosmic eye

When you combine wide field imaging of #ESAEuclid and smaller field but 2x higher resolution imaging by #HubbleSpaceTelescope the result will be stunning: a joint look at the Cat's Eyes Nebula, NGC 6543.

esahubble.org/images/potm2...

@science.esa.int

#astronomy #space #NASA #ESA #Euclid

03.03.2026 15:53 👍 58 🔁 14 💬 1 📌 0

A Universal destruindo a vida das pessoas até em Londres.

03.03.2026 06:38 👍 2 🔁 1 💬 0 📌 0
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1953 Iranian coup d'état - Wikipedia

Você sabia que os EUA destruíram uma democracia secular no Irã?

Em 1953 EUA e Reino Unido participaram ativamente do golpe que derrubou o primeiro-ministro democraticamente eleito, Mohammad Mossadegh, após ele nacionalizar o petróleo iraniano.
en.wikipedia.org/wiki/1953_Ir...

13.06.2025 18:06 👍 214 🔁 84 💬 3 📌 7

Um cassino de cartas marcadas pra um grupo privilegiado

01.03.2026 01:44 👍 0 🔁 0 💬 0 📌 0

80% dos estadunidenses são contra a guerra com o Irã.

Ambos os partidos com representação no Congresso dos EUA apoiam a guerra.

E chamam isso de "democracia".

28.02.2026 16:55 👍 323 🔁 65 💬 5 📌 4
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SpaceX's 1 million satellites could avoid environmental checks The environmental impact of SpaceX's planned gargantuan mega-constellation is still being grappled with, but the FCC isn’t required to study it

SpaceX's 1 million AI satellites could cause "massive ozone depletion" and change the night sky forever - but the FCC has no requirement to check before approving them.

Astronomers are now scrambling to submit their concerns.

Story by me in New Scientist

www.newscientist.com/article/2516...

25.02.2026 23:17 👍 208 🔁 161 💬 11 📌 24

Oh my

22.02.2026 13:45 👍 1 🔁 1 💬 1 📌 0

Sam Altman olha a humanidade e vê isso. Não adianta explicar pra ele a noção de que nesses 20 anos as pessoas riem, choram, aprendem, esquecem, enfim, vivem, enquanto o computador dele tá gerando lero lero. Não faz diferença. Ele não é humano.

22.02.2026 05:23 👍 305 🔁 71 💬 4 📌 1

Why would they do that in a case they will clearly lose?

22.02.2026 11:40 👍 0 🔁 0 💬 1 📌 0

It costs about £5k just to sit with a lawyer to listen to your case in the UK.

I just find hard to believe this person needs this money AND can afford the extremely high costs of the UK legal system.

22.02.2026 10:02 👍 1 🔁 0 💬 1 📌 0

O treinamento do gerador de lero lero do Sam Altman consome ordens de magnitude de recursos a mais do que seres humanos normais, mas eu concordo com ele que algumas pessoas consomem recursos demais. É por isso que eu defendo a eliminação de bilionários.

21.02.2026 21:10 👍 33 🔁 6 💬 1 📌 0

a moral society would put these people into reeducation camps

21.02.2026 20:26 👍 335 🔁 43 💬 12 📌 4
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Yes, I code using CatGPT.
How did you know?

#Caturday

21.02.2026 10:04 👍 11 🔁 0 💬 0 📌 0

Pra galera perguntando sobre o consumo de energia das IAs:

Não se preocupem, os data centres vão tudo rodar usando o petróleo extraído da foz da Amazônia que o governo liberou explorar.

Terminou a COP, eles não precisam mais fingir que se importam com a crise climática.

21.02.2026 08:15 👍 16 🔁 0 💬 0 📌 0

Investidos ou entregues pras big techs?

20.02.2026 20:28 👍 118 🔁 1 💬 0 📌 0

And first tenured saying "it's worse if you are tenured" gets the change to swap jobs with me!

They get to be an overbooked post-doc with no job stability, I get to be an overbooked researcher/professor with unquestionable job stability!

Don't miss this chance!

19.02.2026 09:13 👍 3 🔁 0 💬 0 📌 0
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a large rocket is being launched with a nasa logo in the background ALT: a large rocket is being launched with a nasa logo in the background

First person to say "learn to say no" gets a trip on Musk's rocket to Mars!

Don't miss the chance!

19.02.2026 09:10 👍 4 🔁 0 💬 1 📌 0
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a cartoon of spongebob standing in front of a window with his hands in the air ALT: a cartoon of spongebob standing in front of a window with his hands in the air

Woke up 6 new requests of "can you please urgently join this meeting today?". Booked now from 11 AM to 7 PM on meetings.

When I am supposed to work?!

Also: Guys, if I am so important, please give me a tenure job. Thank you! Love you all!

#AcademicSky

19.02.2026 09:10 👍 7 🔁 0 💬 1 📌 0

Os Monges ensinaram pro Anakin que ele não deve expressar emoções, que ser uma pessoa emocional é fraqueza e que ele precisa ser uma parede de ferro de racionalidade.

Ele vira um jovem frustrado e ressentido.

Um senador nota seu ressentimento corrompe ele ao fascismo.

Fim da democracia galáctica.

18.02.2026 13:27 👍 278 🔁 96 💬 5 📌 3

I came here to say the same thing hahah

18.02.2026 17:16 👍 1 🔁 0 💬 0 📌 0
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Lee Smolin pauses working relationship with Perimeter Institute after being named in Epstein files Lee Smolin has been asked to “pause” his work by the Perimeter Institute as they review ties to Jeffrey Epstein

I‘ve mentioned that thanks to the Epstein tranche I learned that one of my PhD advisors, Lee Smolin, continued to have contact with Epstein after 2007, which is not the impression I had

It’s weird to say the least for my professional past to become a public story that demands feminist analysis

16.02.2026 13:22 👍 1229 🔁 313 💬 13 📌 27