Des scientifiques découvrent une étoile si ancienne qu’elle conserve des traces de la première lumière de l’Univers L’étoile PicII-503, dans une galaxie naine ultradiffuse, présente une composition chimique exceptionnellement primitive/

Une étoile ultra-ancienne, pauvre en métaux, aurait été identifiée comme un “fossile” des premières étoiles.
www.tameteo.com/actualites/a...
#Space #Science #Innovation #Astrophysics #EarlyUniverse #PrimordialStar #Cosmology

Original post on mastodon.social

Une étoile ultra-ancienne, pauvre en métaux, aurait été identifiée comme un “fossile” des premières étoiles.
www.tameteo.com/actualites/astronomie/de...
#Space […]

🌟 Les vestiges d'une colossale étoile primordiale identifiés ? Des trous noirs supermassifs ont été observés alors que l'Univers était encore très jeune, bien trop tôt pour...

Des vestiges d’une étoile primordiale colossale pourraient avoir été identifiés dans l’Univers lointain.
www.techno-science.net/actualite/ve...
#Space #Science #Innovation #Astrophysics #CosmicDiscovery #PrimordialStar #EarlyUniverse #Cosmology #NewSpaceEmerging

Original post on mastodon.social

Des vestiges d’une étoile primordiale colossale pourraient avoir été identifiés dans l’Univers lointain.
www.techno-science.net/actualite/vestiges-colos...
#Space #Science #Innovation #Astrophysics #CosmicDiscovery #PrimordialStar #EarlyUniverse […]

💧 A ses débuts, l'Univers était... liquide L'Univers juste après le Big Bang était similaire à... un liquide. Des physiciens parviennent aujourd'hui à...

L’Univers tout juste né était comme un liquide de quarks et gluons, et les physiciens le recréent en collision au CERN 🌌
www.techno-science.net/actualite/se...
#Space #Science #Innovation #Astrophysics #BigBang #QuarkGluonPlasma #EarlyUniverse #CosmicOrigins

Original post on mastodon.social

L’Univers tout juste né était comme un liquide de quarks et gluons, et les physiciens le recréent en collision au CERN 🌌
www.techno-science.net/actualite/ses-debuts-uni...
#Space #Science #Innovation #Astrophysics #BigBang #QuarkGluonPlasma #EarlyUniverse […]

A rare star in a tiny galaxy preserves a record of the early universe Found in an ultrafaint dwarf galaxy, the ancient star’s unusual chemistry indicates it formed from gas enriched by a single early supernova.

A rare star in a tiny galaxy preserves a record of the early universe #Science #Space #Astrophysics #EarlyUniverse #Astronomy #Galaxies

www.sciencenews.org/article/primitive-star-g...

Le télescope spatial James Webb vient tout juste de résoudre un mystère cosmique qui semblait impossible Le JWST révèle pourquoi les galaxies jeunes semblaient riches en azote et comment la densité du gaz altérait les données chimiques de l’Univers.

Le JWST éclaire enfin le mystère des galaxies primordiales : l’excès d’azote disparaît grâce à une lecture correcte du gaz extrême. www.tameteo.com/actualites/a... #Space #Science #Innovation #Astrophysics #JWSTData #EarlyUniverse #Galaxies #CosmicDiscovery

Original post on mastodon.social

Le JWST éclaire enfin le mystère des galaxies primordiales : l’excès d’azote disparaît grâce à une lecture correcte du gaz extrême […]

Missing links in galaxy evolution: The ALMA Discovery Missing links in galaxy evolution identified by ALMA and JWST reveal a hidden population of dusty, massive galaxies from 13 billion years ago t...

#Astrophysics #ALMA #Astrophysics #Cosmology […]

[Original post on nasaspacenews.com]

🔭 Record battu: une galaxie observée alors que l'Univers n'avait que 2% de son âge actuel Le télescope spatial James Webb a permis à des astronomes de repérer une galaxie si distante qu'elle nous renvoie...

Punaise ! Une galaxie repérée par James Webb alors que l’Univers n’avait que 2 % de son âge : MoM-z14 bouleverse nos idées sur l’aube cosmique.
www.techno-science.net/actualite/re...
#Space #Science #Innovation #Astrophysics #JWST #MoMz14 #EarlyUniverse #CosmicDawn #JWSTData

Original post on mastodon.social

Punaise ! Une galaxie repérée par James Webb alors que l’Univers n’avait que 2 % de son âge : MoM-z14 bouleverse nos idées sur l’aube cosmique.
www.techno-science.net/actualite/record-battu-g...
#Space #Science #Innovation […]

Ancient Galaxy Cluster Challenges Timeline of the Universe - NASA’s Webb and Chandra telescopes have spotted a massive galaxy cluster forming just one billion years after the Big Bang, challenging...

Ancient Galaxy Cluster Challenges Timeline of the Universe
wiobs.com/ancient-gala...
#JamesWebb #NASA #Astronomy #EarlyUniverse #DarkMatter #SpaceScience #Cosmology

Vast cluster of ancient galaxies could rewrite the history of star formation Astronomers have discovered a vast, dense cluster of massive galaxies just 1 billion years after the Big Bang, each forming stars at an intense rate from collapsing clouds of dust. Reported in Astronomy & Astrophysics by an international team, led by Guilaine Lagache at Aix-Marseille University, the structure appears to challenge existing models of how rapidly stars could have formed in the early universe.

🤯A cosmic surprise! Astronomers found a HUGE galaxy cluster blazing with starbirth just 1 billion yrs after the Big Bang. Challenging theories! ✨🌌 #EarlyUniverse

Source: phys.org/news/2026-01-vast-cluste...

Comprehensive Big Bang Cosmological Simulator with Multi-Physics Implementation # Enhanced Big Bang Cosmological Simulator v3.0: A Comprehensive Framework for Precision Cosmology with Advanced Physics Modules #Author Adam L McEvoy ## Abstract I present a computational framework f...

What if there was a tool that could simulate the big bang theory and reproduce planck data?

#BigBang #Cosmology #EarlyUniverse #Inflation #QuantumCosmology #ComputationalPhysics #Fractals

zenodo.org/records/1715...

Cette supernova ultra-précoce bouscule nos modèles : une étoile explose aux débuts du cosmos, bien plus tôt que prévu. www.digitec.ch/fr/page/supe... #Space #Science #Astrophysics #Supernova #EarlyUniverse

Astronomers Find the First Compelling Evidence of Using the James Webb Space Telescope, a team of international researchers has discovered chemical fingerprints of gigantic primordial stars that were among the first to form after the Big Bang.

Astronomers Find the First Compelling Evidence of "Monster Stars" in the Early Universe #Science #Space #Astrophysics hashtag 1: 2: #EarlyUniverse 3: #MonsterStars

The JWST Found A Jekyll-and-Hyde Galaxy In The Early Universe In a glimpse of the early universe, astronomers have observed a galaxy as it appeared just 800 million years after the Big Bang – a cosmic Jekyll and Hyde that looks like any other galaxy when viewed...

The JWST Found A Jekyll-and-Hyde Galaxy In The Early Universe #Science #Space #Astronomy #JWST #EarlyUniverse #AstronomyDiscoveries

'We were amazed': Scientists using James Webb telescope may have discovered the earliest supernova in the known universe Astronomers using the James Webb Space Telescope report that a powerful gamma-ray burst detected in March may have been produced by the explosion of a massive star just 730 million years after the Big Bang.

Astronomers using the James Webb Space Telescope report a powerful gamma‑ray burst from a massive star that exploded when the universe was only about 730 million years old.

www.livescience.com/...

#JWST #Space #EarlyUniverse #MiddleGradeSciFi

GRB 250314A Pull-out (NIRCam Image) - NASA Science NASA’s James Webb Space Telescope identified the source of a super bright flash of light known as a gamma-ray burst: a supernova that exploded when the universe was only 730 million years old. Webb’s ...

Webb’s near-infrared image shows that the flash called GRB 250314A came from a supernova when the universe was only 730Myo. The image also reveals the host galaxy for the first time at this distance, giving scientists a direct view of early cosmic evolution.
#JWST
#Astrophysics
#EarlyUniverse
🧪🛰️🔭

The James Webb Space Telescope just found the oldest supernova ever seen
#DistantSupernova #JWST #EarlyUniverse
www.youtube.com/watch?v=ckNO...

Supermassive dark matter stars may be lurking in the early universe Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have spotted the first hints that they are real

Supermassive dark matter stars may be lurking in the early universe #Science #Space #Astrophysics #DarkMatter #EarlyUniverse

“Cannibal Stars” and Black Holes May Have Formed in the Universe’s First Second A new study suggests that during a potential phase of primordial matter domination, particle interactions may have led to the formation of the universe’s first compact cosmic objects. Less than a second...

“Cannibal Stars” and Black Holes May Have Formed in the Universe’s First Second #Science #Space #Astrophysics #CannibalStars #BlackHoles #EarlyUniverse

These Massive Stars 10,000x Heavier Than the Sun Ruled Early Universe A new model sheds light on the long-standing chemical mysteries found in globular clusters, the ancient archives of the universe. An international collaboration led by ICREA researcher Mark Gieles, from...

These Massive Stars 10,000x Heavier Than the Sun Ruled Early Universe #Science #Space #Astrophysics #MassiveStars #EarlyUniverse

The Early Universe Let Black Holes Break The Rules, Briefly A new clue to their growth emerges.

The Early Universe Let Black Holes Break The Rules, Briefly #Science #Space #Astrophysics #BlackHoles #EarlyUniverse

The Early Universe Helps Black Holes Grow Big, But Not In The Long Run Cosmic inflation helps black holes grow quickly, but it can't explain how supermassive black holes grew to billions of solar masses in less than 500 million years.

The Early Universe Helps Black Holes Grow Big, But Not In The Long Run #Science #Space #Astrophysics #BlackHoles #EarlyUniverse

Original post on nasaspacenews.com

Webb Telescope Reveals the Universe’s Chaotic Childhood in Early Galactic Kinematics Universe’s Chaotic Childhood revealed through JWST observations showing early galaxies were turbulent, gas-f...

#Astrophysics #Astrobiology #Astrophysics #CosmicEvolution […]

[Original post on nasaspacenews.com]