Laurent Sacco
@laurents.bsky.social
Pinned
Laurent Sacco
@laurents.bsky.social
· Nov 2
Le satellite Gaia a-t-il enfin démontré l'existence de la matière noire ?
Deux chercheurs français, Alain Blanchard et Even Coquery, ont peut-être découvert le moyen de départager la théorie de la matière noire et la théorie Mond pour expliquer le royaume des galaxies ré...
www.futura-sciences.com
Reposted by Laurent Sacco
If you're a VLBI radio person 🔭🧪 and keen on imaging #blackholes and their jets, please consider applying for a postdoc position in my new research group at the @cambridgeastro.bsky.social @cam.ac.uk!
www.cam.ac.uk/jobs/researc...
www.cam.ac.uk/jobs/researc...
Research Associate/Assistant in observational Event Horizon Telescope (mm-VLBI) Science (Fixed Term)
Fixed-term: The funds for this post are available for 2 years in the first instance, with the possibility for extension up to one year. Applications are invited for a postdoctoral position at the
www.cam.ac.uk
December 20, 2025 at 12:44 AM
If you're a VLBI radio person 🔭🧪 and keen on imaging #blackholes and their jets, please consider applying for a postdoc position in my new research group at the @cambridgeastro.bsky.social @cam.ac.uk!
www.cam.ac.uk/jobs/researc...
www.cam.ac.uk/jobs/researc...
Reposted by Laurent Sacco
Théoricien de la croissance par l’innovation, Philippe Aghion s’est vu remettre le 10 décembre 2025 le prix Nobel d'économie, avec le Canadien Peter Howitt et l’historien américano-israélien Joel Mokyr. ll est le cinquième Français à décrocher cette distinction créée en 1969.
Philippe Aghion : « Mon obsession, c’est la pauvreté, pas les riches »
lejournal.cnrs.fr
December 18, 2025 at 9:03 PM
Théoricien de la croissance par l’innovation, Philippe Aghion s’est vu remettre le 10 décembre 2025 le prix Nobel d'économie, avec le Canadien Peter Howitt et l’historien américano-israélien Joel Mokyr. ll est le cinquième Français à décrocher cette distinction créée en 1969.
Reposted by Laurent Sacco
Europa Clipper has imaged interstellar comet 3I/Atlas with its ultraviolet spectrometer!
This is only the 3rd interstellar object discovered so far: an icy wanderer from a distant planetary system, and now we’ll learn more about what it’s made of!!
🔭
www.swri.org/newsroom/pre...
This is only the 3rd interstellar object discovered so far: an icy wanderer from a distant planetary system, and now we’ll learn more about what it’s made of!!
🔭
www.swri.org/newsroom/pre...
December 18, 2025 at 9:06 PM
Europa Clipper has imaged interstellar comet 3I/Atlas with its ultraviolet spectrometer!
This is only the 3rd interstellar object discovered so far: an icy wanderer from a distant planetary system, and now we’ll learn more about what it’s made of!!
🔭
www.swri.org/newsroom/pre...
This is only the 3rd interstellar object discovered so far: an icy wanderer from a distant planetary system, and now we’ll learn more about what it’s made of!!
🔭
www.swri.org/newsroom/pre...
Reposted by Laurent Sacco
Vous avez l’ambition de faire bouger la science ? #RejoignezleCNRS 🫵
Jusqu’au 12 janvier 2026, le #CNRS recrute ses futurs chercheurs et chercheuses !
👉 carrieres.cnrs.fr/concours-ext...
#Recrutement
Jusqu’au 12 janvier 2026, le #CNRS recrute ses futurs chercheurs et chercheuses !
👉 carrieres.cnrs.fr/concours-ext...
#Recrutement
December 18, 2025 at 9:25 AM
Vous avez l’ambition de faire bouger la science ? #RejoignezleCNRS 🫵
Jusqu’au 12 janvier 2026, le #CNRS recrute ses futurs chercheurs et chercheuses !
👉 carrieres.cnrs.fr/concours-ext...
#Recrutement
Jusqu’au 12 janvier 2026, le #CNRS recrute ses futurs chercheurs et chercheuses !
👉 carrieres.cnrs.fr/concours-ext...
#Recrutement
Reposted by Laurent Sacco
Hubble went back to observe interstellar comet #3I/ATLAS on 30 November. At the time, the comet was about 286 million kilometres from Earth 👉 www.esa.int/ESA_Multimed...
Hubble tracked the comet as it moved across the sky. That's why background stars appear as streaks of light. 🔭 🧪
Hubble tracked the comet as it moved across the sky. That's why background stars appear as streaks of light. 🔭 🧪
December 5, 2025 at 9:42 AM
Hubble went back to observe interstellar comet #3I/ATLAS on 30 November. At the time, the comet was about 286 million kilometres from Earth 👉 www.esa.int/ESA_Multimed...
Hubble tracked the comet as it moved across the sky. That's why background stars appear as streaks of light. 🔭 🧪
Hubble tracked the comet as it moved across the sky. That's why background stars appear as streaks of light. 🔭 🧪
Reposted by Laurent Sacco
"Les vraies études scientifiques prennent du temps, de l’énergie, à la différence des torchons rédigés en copier-coller en trois jours sur une paillasse à l’IHU Marseille."
Vaccin contre le Covid : l’étude révolutionnaire qui enterre définitivement les accusations des antivax
Cinq ans après le début de la vaccination Covid, une étude de grande ampleur compare la mortalité à long terme des vaccinés et non vaccinés. Christian Lehmann, médecin et écrivain, tient la chronique ...
www.liberation.fr
December 5, 2025 at 10:38 AM
"Les vraies études scientifiques prennent du temps, de l’énergie, à la différence des torchons rédigés en copier-coller en trois jours sur une paillasse à l’IHU Marseille."
Reposted by Laurent Sacco
The laws of thermodynamics don't accurately account for the complex processes in living cells – do we need a new one to accurately measure the ways living systems are out of equilibrium?
We may need a fourth law of thermodynamics for living systems
The laws of thermodynamics don't accurately account for the complex processes in living cells – do we need a new one to accurately measure the ways living systems are out of equilibrium?
www.newscientist.com
December 5, 2025 at 10:43 AM
The laws of thermodynamics don't accurately account for the complex processes in living cells – do we need a new one to accurately measure the ways living systems are out of equilibrium?
Reposted by Laurent Sacco
Go Envision!
About time we humans resumed our exploration of Venus to
Learn about climate change, history and distribution of life in the universe, and what makes Earthlike planets tick!
🧪
About time we humans resumed our exploration of Venus to
Learn about climate change, history and distribution of life in the universe, and what makes Earthlike planets tick!
🧪
A mission like #Envision takes years of planning and a huge amount of teamwork between scientists and engineers. It's a process we want to share with you through a new series that follows the development of the mission.
Here's a teaser of what's to come 👇
🔭 🧪
Here's a teaser of what's to come 👇
🔭 🧪
December 1, 2025 at 4:27 PM
Go Envision!
About time we humans resumed our exploration of Venus to
Learn about climate change, history and distribution of life in the universe, and what makes Earthlike planets tick!
🧪
About time we humans resumed our exploration of Venus to
Learn about climate change, history and distribution of life in the universe, and what makes Earthlike planets tick!
🧪
Reposted by Laurent Sacco
The humanity of Ukrainian Defenders knows no bounds - they are always ready to help not only their brothers-in-arms, but also the animals asking for food.
📹: Fire Company of the Svoboda Battalion/Facebook
📹: Fire Company of the Svoboda Battalion/Facebook
November 30, 2025 at 9:36 PM
The humanity of Ukrainian Defenders knows no bounds - they are always ready to help not only their brothers-in-arms, but also the animals asking for food.
📹: Fire Company of the Svoboda Battalion/Facebook
📹: Fire Company of the Svoboda Battalion/Facebook
Reposted by Laurent Sacco
In St. Petersburg, 83-year-old Lyudmila Vasilyeva was detained. She went out to Palace Square with an anti-war poster, and she was taken to the police station immediately.
Lyudmila was born in 1941, worked at defense enterprises
Lyudmila was born in 1941, worked at defense enterprises
November 30, 2025 at 12:15 PM
In St. Petersburg, 83-year-old Lyudmila Vasilyeva was detained. She went out to Palace Square with an anti-war poster, and she was taken to the police station immediately.
Lyudmila was born in 1941, worked at defense enterprises
Lyudmila was born in 1941, worked at defense enterprises
Reposted by Laurent Sacco
Le @cnrs.fr et @franceuniversites.bsky.social ont remis les médailles de la médiation scientifique 2025.
Découvrez les lauréats en déroulant le fil ci-dessous :
Découvrez les lauréats en déroulant le fil ci-dessous :
En explorant les mécanismes psychologiques du racisme, l’émission « Sommes-nous tous racistes ? » 📺, diffusée sur @francetv.bsky.social, reçoit le prix diffusion des connaissances.
Portrait 📽️ youtu.be/r3ghHinRPhU
Portrait 📽️ youtu.be/r3ghHinRPhU
November 28, 2025 at 4:16 PM
Le @cnrs.fr et @franceuniversites.bsky.social ont remis les médailles de la médiation scientifique 2025.
Découvrez les lauréats en déroulant le fil ci-dessous :
Découvrez les lauréats en déroulant le fil ci-dessous :
Reposted by Laurent Sacco
Please Donate to the Internet Archive. $25 helps.... a lot.
Useful to Journalists,
Useful to Students,
Useful to more than 2 million people a day.
Collections growing at 150TBytes/day
@internetarchive
archive.org/donate
www.cnn.com/2025/11/16/b...
Useful to Journalists,
Useful to Students,
Useful to more than 2 million people a day.
Collections growing at 150TBytes/day
@internetarchive
archive.org/donate
www.cnn.com/2025/11/16/b...
November 29, 2025 at 4:16 PM
Please Donate to the Internet Archive. $25 helps.... a lot.
Useful to Journalists,
Useful to Students,
Useful to more than 2 million people a day.
Collections growing at 150TBytes/day
@internetarchive
archive.org/donate
www.cnn.com/2025/11/16/b...
Useful to Journalists,
Useful to Students,
Useful to more than 2 million people a day.
Collections growing at 150TBytes/day
@internetarchive
archive.org/donate
www.cnn.com/2025/11/16/b...
Reposted by Laurent Sacco
Great to see this excellent deep dive into the influential Hard Steps model for the evolution of intelligence and our paper showing why it’s wrong.
I wrote this piece at the start of the year, so it's nice to see it finally out before the year's end! It looks at the notion of "hard steps" in evolution that allegedly make intelligent life rare in the universe, and why that might not be correct after all.
nautil.us/we-might-not...
nautil.us/we-might-not...
We Might Not Be So Strange
We Might Not Be So Strange: Perhaps intelligent life wasn’t so unlikely after all.
nautil.us
November 30, 2025 at 1:32 PM
Great to see this excellent deep dive into the influential Hard Steps model for the evolution of intelligence and our paper showing why it’s wrong.
Reposted by Laurent Sacco
France hosted a large musical flash mob featuring 100 musicians who came together to perform a new orchestral version of Carol of the Bells to mark the ceremonial switching-on of the Christmas lights in the streets of Paris.
November 28, 2025 at 8:52 PM
France hosted a large musical flash mob featuring 100 musicians who came together to perform a new orchestral version of Carol of the Bells to mark the ceremonial switching-on of the Christmas lights in the streets of Paris.
Reposted by Laurent Sacco
#CNRSnews 📰 Energy transition is a myth, based on the misconception that energy sources were replaced by “cleaner” alternatives over the past 200 years. Carbon emissions have actually increased, hence the need for better informed strategies to fight global warming
news.cnrs.fr/articles/the...
news.cnrs.fr/articles/the...
The myth of energy transition
The concept of an “energy transition” is misleading, states the CNRS science historian Jean-Baptiste Fressoz. He explains why coal and oil never replaced wood, and that the fight against climate chang...
news.cnrs.fr
November 27, 2025 at 10:57 PM
#CNRSnews 📰 Energy transition is a myth, based on the misconception that energy sources were replaced by “cleaner” alternatives over the past 200 years. Carbon emissions have actually increased, hence the need for better informed strategies to fight global warming
news.cnrs.fr/articles/the...
news.cnrs.fr/articles/the...
Reposted by Laurent Sacco
Avi Loeb's calculations about 3I/ATLAS are 100% wrong because he has never understood that dust in the tail(s) responds to solar radiation pressure. Solar wind shapes the ion tail. But the radiation pressure is about 1000 times larger than the solar wind ram pressure, for particles that feel it.
November 13, 2025 at 9:36 PM
Avi Loeb's calculations about 3I/ATLAS are 100% wrong because he has never understood that dust in the tail(s) responds to solar radiation pressure. Solar wind shapes the ion tail. But the radiation pressure is about 1000 times larger than the solar wind ram pressure, for particles that feel it.
Reposted by Laurent Sacco
Hi! I’m a Professor of astrophysics at ASU. I use meteorite data to model how stars and planets form. I lead a NASA-funded team to predict the diversity of exoplanet compositions. I work with realice.eco to explore ways to thicken arctic ice. I fight bad science. Let’s karaoke!
November 24, 2024 at 9:17 PM
Hi! I’m a Professor of astrophysics at ASU. I use meteorite data to model how stars and planets form. I lead a NASA-funded team to predict the diversity of exoplanet compositions. I work with realice.eco to explore ways to thicken arctic ice. I fight bad science. Let’s karaoke!
Reposted by Laurent Sacco
Thinking only of Rosalind Franklin today, and what was stolen from her (and so many other female scientists alongside her).
Rosalind Franklin and the damage of gender harassment
Spurred by a recent report on sexual harassment in academia, our columnist revisits a historical case and reflects on what has changed—and what hasn’t
www.science.org
November 7, 2025 at 7:58 PM
Thinking only of Rosalind Franklin today, and what was stolen from her (and so many other female scientists alongside her).
