Arthur Loureiro
@cosmonist.bsky.social
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)
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)
Gzuz, pushed a couple of papers to the arxiv with my most recent email in the last weeks and I am getting like 4 or 5 bullshit journals contacting me per day.
Bro, I do not want to publish my COSMOLOGY draft on the "Journal of Biopolymers and Theoretical Studies" 😂
#AcademicSky
Bro, I do not want to publish my COSMOLOGY draft on the "Journal of Biopolymers and Theoretical Studies" 😂
#AcademicSky
February 11, 2026 at 8:15 AM
Gzuz, pushed a couple of papers to the arxiv with my most recent email in the last weeks and I am getting like 4 or 5 bullshit journals contacting me per day.
Bro, I do not want to publish my COSMOLOGY draft on the "Journal of Biopolymers and Theoretical Studies" 😂
#AcademicSky
Bro, I do not want to publish my COSMOLOGY draft on the "Journal of Biopolymers and Theoretical Studies" 😂
#AcademicSky
Reposted by Arthur Loureiro
O que Cuba fez aos Estados Unidos para que os Estados Unidos condenem a ilha à fome?
O que Cuba fez aos Estados Unidos além de não se ajoelhar?
O que Cuba fez aos Estados Unidos além de não aceitar ser sequestrada pelos maiores delinquentes do mundo?
O que Cuba fez aos Estados Unidos além de não se ajoelhar?
O que Cuba fez aos Estados Unidos além de não aceitar ser sequestrada pelos maiores delinquentes do mundo?
February 10, 2026 at 7:43 PM
O que Cuba fez aos Estados Unidos para que os Estados Unidos condenem a ilha à fome?
O que Cuba fez aos Estados Unidos além de não se ajoelhar?
O que Cuba fez aos Estados Unidos além de não aceitar ser sequestrada pelos maiores delinquentes do mundo?
O que Cuba fez aos Estados Unidos além de não se ajoelhar?
O que Cuba fez aos Estados Unidos além de não aceitar ser sequestrada pelos maiores delinquentes do mundo?
lol
I’m closer to “Australian agricultural sector” than to a professional astronomer 😂
Maybe it’s time to review my career choices… although I’m terrified by Australian wild life.
I’m closer to “Australian agricultural sector” than to a professional astronomer 😂
Maybe it’s time to review my career choices… although I’m terrified by Australian wild life.
February 9, 2026 at 6:22 AM
lol
I’m closer to “Australian agricultural sector” than to a professional astronomer 😂
Maybe it’s time to review my career choices… although I’m terrified by Australian wild life.
I’m closer to “Australian agricultural sector” than to a professional astronomer 😂
Maybe it’s time to review my career choices… although I’m terrified by Australian wild life.
Reposted by Arthur Loureiro
Any time I look to see what the Labour government is up to in the UK it turns out to be things like making posters that Alfonso Cuarón put in the background of the long tracking shot that opens “Children of Men”.
February 8, 2026 at 12:12 PM
Any time I look to see what the Labour government is up to in the UK it turns out to be things like making posters that Alfonso Cuarón put in the background of the long tracking shot that opens “Children of Men”.
Reposted by Arthur Loureiro
This is bleak: Jes Staley, currently CEO of Barclays, reassuring Epstein that popular revolt against financial elites is unlikely because capitalism and pop culture have defanged social movements, leaving people more invested in consumption than justice.
February 6, 2026 at 10:23 PM
This is bleak: Jes Staley, currently CEO of Barclays, reassuring Epstein that popular revolt against financial elites is unlikely because capitalism and pop culture have defanged social movements, leaving people more invested in consumption than justice.
Reposted by Arthur Loureiro
Sorry for the preview pic in your feed, but we've posted a thoughtful story by @dangaristo.bsky.social that delves into the tangled web of relationships between Jeffrey Epstein and various scientists: www.nature.com/articles/d41...
Epstein files reveal deeper ties to scientists than previously known
Latest batch of documents show researchers consulting the financier and sex offender on publications, visas and more.
www.nature.com
February 6, 2026 at 8:21 PM
Sorry for the preview pic in your feed, but we've posted a thoughtful story by @dangaristo.bsky.social that delves into the tangled web of relationships between Jeffrey Epstein and various scientists: www.nature.com/articles/d41...
It's cool #PaperDay today @oskarkleincentre.bsky.social, #Astronomy #Cosmology!
arxiv.org/abs/2602.02363
We used a physics informed Field Level Inference method applied to a large Quasar sample to reconstruct the inicial conditions, matter field and dynamics of the Universe at the largest scales!
arxiv.org/abs/2602.02363
We used a physics informed Field Level Inference method applied to a large Quasar sample to reconstruct the inicial conditions, matter field and dynamics of the Universe at the largest scales!
Reconstructing the largest scales of the Universe with field-level inference applied to the Quaia Quasar Catalogue
The recently released Quaia quasar catalogue, with its broad redshift range and all-sky coverage, enables unprecedented three-dimensional reconstructions of matter across cosmic time. In this work, we...
arxiv.org
February 3, 2026 at 8:42 AM
It's cool #PaperDay today @oskarkleincentre.bsky.social, #Astronomy #Cosmology!
arxiv.org/abs/2602.02363
We used a physics informed Field Level Inference method applied to a large Quasar sample to reconstruct the inicial conditions, matter field and dynamics of the Universe at the largest scales!
arxiv.org/abs/2602.02363
We used a physics informed Field Level Inference method applied to a large Quasar sample to reconstruct the inicial conditions, matter field and dynamics of the Universe at the largest scales!
Since xAI owns Grok, launching anything via SpaceX now means that you are literally putting money into a child p*rnogr*phy making app.
Governments should revise their plans to use SpaceX for launch. Specially @esa.int !!!
Governments should revise their plans to use SpaceX for launch. Specially @esa.int !!!
Breaking news: Elon Musk’s SpaceX has acquired his AI group xAI, furthering the billionaire's ambition to develop powerful tools powered by data centres in space. ft.trib.al/NdX8yzB
February 3, 2026 at 6:47 AM
Since xAI owns Grok, launching anything via SpaceX now means that you are literally putting money into a child p*rnogr*phy making app.
Governments should revise their plans to use SpaceX for launch. Specially @esa.int !!!
Governments should revise their plans to use SpaceX for launch. Specially @esa.int !!!
Reposted by Arthur Loureiro
Hi I’m your local space scientist here to say that this is nonsense spun up as an investment scam
Musk merges SpaceX and xAI firms, plans for space-based AI data centres https://aje.news/jm42h7
February 3, 2026 at 5:15 AM
Hi I’m your local space scientist here to say that this is nonsense spun up as an investment scam
Reposted by Arthur Loureiro
This shit hits like a sledgehammer right now. It's not even remotely an exaggeration.
February 1, 2026 at 12:30 AM
This shit hits like a sledgehammer right now. It's not even remotely an exaggeration.
Reposted by Arthur Loureiro
Sabe q eu lembro bem de crescer nos anos 2000 e escutando que se tinha algum bilionário ético e filantrópico era esse cara aí...olha os role q ele fazia enquanto cultivava essa imagem de moderado
Bill Gates allegedly caught an STD when he cheated on then-wife Melinda Gates, newly released emails in the Jeffrey Epstein files revealed.
Bill Gates Shocker! Billionaire Got an STD After Cheating on His Wife With 'Russian Girls,' Jeffrey Epstein Files Claim
okmagazine.com
January 31, 2026 at 2:35 PM
Sabe q eu lembro bem de crescer nos anos 2000 e escutando que se tinha algum bilionário ético e filantrópico era esse cara aí...olha os role q ele fazia enquanto cultivava essa imagem de moderado
Reposted by Arthur Loureiro
It is time to call out Trump's next international crime: HANDS OFF CUBA Mr TRUMP! www.whitehouse.gov/fact-sheets/...
Fact Sheet: President Donald J. Trump Addresses Threats to the United States by the Government of Cuba
CONFRONTING THE CUBAN REGIME: Today, President Donald J. Trump signed an Executive Order declaring a national emergency and establishing a process to
www.whitehouse.gov
January 30, 2026 at 5:47 AM
It is time to call out Trump's next international crime: HANDS OFF CUBA Mr TRUMP! www.whitehouse.gov/fact-sheets/...
🥹
🐆🎵🐆
🐆🎵🐆
9 da manhã do sábado e eu chorando pq descobriram que onça mia pra falar com seus filhotes
January 25, 2026 at 8:28 AM
🥹
🐆🎵🐆
🐆🎵🐆
Reposted by Arthur Loureiro
Dark Energy Survey Year Y6 Results Day!
This morning's arXiv announcement contained a number of papers related to the Dark Energy Survey Y6 analysis. There is also a Zoom webinar at 10.30 Central Time (16.30 GMT'; 13.30 in Greeland). Details can be found here. You can find links and abstracts to…
This morning's arXiv announcement contained a number of papers related to the Dark Energy Survey Y6 analysis. There is also a Zoom webinar at 10.30 Central Time (16.30 GMT'; 13.30 in Greeland). Details can be found here. You can find links and abstracts to…
Dark Energy Survey Year Y6 Results Day!
This morning's arXiv announcement contained a number of papers related to the Dark Energy Survey Y6 analysis. There is also a Zoom webinar at 10.30 Central Time (16.30 GMT'; 13.30 in Greeland). Details can be found here. You can find links and abstracts to all the papers here, but I thought it would be useful to provide arXiv links to the latest batch here.
telescoper.blog
January 22, 2026 at 12:10 PM
Dark Energy Survey Year Y6 Results Day!
This morning's arXiv announcement contained a number of papers related to the Dark Energy Survey Y6 analysis. There is also a Zoom webinar at 10.30 Central Time (16.30 GMT'; 13.30 in Greeland). Details can be found here. You can find links and abstracts to…
This morning's arXiv announcement contained a number of papers related to the Dark Energy Survey Y6 analysis. There is also a Zoom webinar at 10.30 Central Time (16.30 GMT'; 13.30 in Greeland). Details can be found here. You can find links and abstracts to…
If you want to spend 3hrs being gaslighted by LLMs, just ask it to, for a given cosmology, convert Mpc to Mpc/h...
No matter what you say, they will refuse to understand.
No matter what you say, they will refuse to understand.
January 21, 2026 at 4:24 PM
If you want to spend 3hrs being gaslighted by LLMs, just ask it to, for a given cosmology, convert Mpc to Mpc/h...
No matter what you say, they will refuse to understand.
No matter what you say, they will refuse to understand.
Reposted by Arthur Loureiro
Important perspective from Greenland.
January 20, 2026 at 1:31 PM
Important perspective from Greenland.
I wish more people in my field in #academia read and learned about Paulo Freire.
This continues to be 100% true, everyday.
#academicsky
This continues to be 100% true, everyday.
#academicsky
January 21, 2026 at 11:33 AM
I wish more people in my field in #academia read and learned about Paulo Freire.
This continues to be 100% true, everyday.
#academicsky
This continues to be 100% true, everyday.
#academicsky
Reposted by Arthur Loureiro
futuro cyberpunk controlado por megaempresas que me prometeram:
- neon
- implantes cibernéticos
- drogas liberadas
futuro cyberpunk controlado por megaempresas que eu recebi:
- enel lixo
- microsoft teams
- bancada evangélica
- neon
- implantes cibernéticos
- drogas liberadas
futuro cyberpunk controlado por megaempresas que eu recebi:
- enel lixo
- microsoft teams
- bancada evangélica
January 20, 2026 at 3:24 PM
futuro cyberpunk controlado por megaempresas que me prometeram:
- neon
- implantes cibernéticos
- drogas liberadas
futuro cyberpunk controlado por megaempresas que eu recebi:
- enel lixo
- microsoft teams
- bancada evangélica
- neon
- implantes cibernéticos
- drogas liberadas
futuro cyberpunk controlado por megaempresas que eu recebi:
- enel lixo
- microsoft teams
- bancada evangélica
If anyone knows how to access a documented version of Planck PR4, please let me know
I have been hunting down this data for weeks now.
PLA doesn't have it, the CMB S4 link appears to be broken, the data the Wiki points to in NERSC is undocumented so I have no clue what I am looking at. #cosmology
I have been hunting down this data for weeks now.
PLA doesn't have it, the CMB S4 link appears to be broken, the data the Wiki points to in NERSC is undocumented so I have no clue what I am looking at. #cosmology
January 20, 2026 at 2:53 PM
If anyone knows how to access a documented version of Planck PR4, please let me know
I have been hunting down this data for weeks now.
PLA doesn't have it, the CMB S4 link appears to be broken, the data the Wiki points to in NERSC is undocumented so I have no clue what I am looking at. #cosmology
I have been hunting down this data for weeks now.
PLA doesn't have it, the CMB S4 link appears to be broken, the data the Wiki points to in NERSC is undocumented so I have no clue what I am looking at. #cosmology
Reposted by Arthur Loureiro
Pros gringuito (e seus capachos) que não aprendem essa porra básica de geografia.
January 12, 2026 at 2:57 PM
Pros gringuito (e seus capachos) que não aprendem essa porra básica de geografia.
Reposted by Arthur Loureiro
Every day, thousands of women and children are victimized by people on X using the Grok chatbot to generate scantily clad and naked photos of them.
It’s time for governments to take action. Elon Musk’s X should have been banned long ago. They don’t have an excuse to delay any longer.
It’s time for governments to take action. Elon Musk’s X should have been banned long ago. They don’t have an excuse to delay any longer.
Elon Musk’s X must be banned
Regulators need to stop cowering before the richest man in the world
disconnect.blog
January 8, 2026 at 5:26 PM
Every day, thousands of women and children are victimized by people on X using the Grok chatbot to generate scantily clad and naked photos of them.
It’s time for governments to take action. Elon Musk’s X should have been banned long ago. They don’t have an excuse to delay any longer.
It’s time for governments to take action. Elon Musk’s X should have been banned long ago. They don’t have an excuse to delay any longer.
Reposted by Arthur Loureiro
Voice of Victim
"What I learnt (the hard way) after I raised bullying issues with my University:
HR is not my friend
Confidentiality is a shield to protect the institution & the powerful
Transparency is optional
Staff wellbeing is a slogan, not a practice"
"What I learnt (the hard way) after I raised bullying issues with my University:
HR is not my friend
Confidentiality is a shield to protect the institution & the powerful
Transparency is optional
Staff wellbeing is a slogan, not a practice"
January 8, 2026 at 9:11 AM
Voice of Victim
"What I learnt (the hard way) after I raised bullying issues with my University:
HR is not my friend
Confidentiality is a shield to protect the institution & the powerful
Transparency is optional
Staff wellbeing is a slogan, not a practice"
"What I learnt (the hard way) after I raised bullying issues with my University:
HR is not my friend
Confidentiality is a shield to protect the institution & the powerful
Transparency is optional
Staff wellbeing is a slogan, not a practice"
Reposted by Arthur Loureiro
Now you REALLY need to leave X (and so does your employer…)
Staying on X is morally indefensible. It is the Epstein Island of social media.
Staying on X is morally indefensible. It is the Epstein Island of social media.
Now you REALLY need to leave X (and so does your employer…)
Staying on X is morally indefensible. It is the Epstein Island of social media.
telescoper.blog
January 7, 2026 at 5:49 PM
Now you REALLY need to leave X (and so does your employer…)
Staying on X is morally indefensible. It is the Epstein Island of social media.
Staying on X is morally indefensible. It is the Epstein Island of social media.