#Cosmology

@alanmckeanpoet.bsky.social

14 hours ago

BRIDGE
Einstein-Rosen Bridge
Interconnectivity
Thoughts at tau zero

© Alan McKean

#haiku
#cosmology

Mark Scott

@johnconnor6060.bsky.social

15 hours ago

🌌 χ_p → ⛰️ inflaton valley
❓ early Ω_e high → underdetermined
⚓ quasars anchor symmetry
🕰️ Δχ → Ω_e ↓
🌐 galaxies distribute buffering

👁️ later frames → flatter valley

#χFramework #Cosmology

Mark Scott

@johnconnor6060.bsky.social

18 hours ago

🌌χₚ → ⛰️ inflaton valley
✨primordial symmetry sets the floor
🕰️Δχ slowly elongates the valley
👁️later frames → slightly shallower

#χFramework #Cosmology

Sirius

@sirius2368.bsky.social

20 hours ago

Emanationism

#Cosmology #Theology
#Emanationism
#AsAboveSoBelow
#OnEarthAsItIsInHeaven

en.wikipedia.org/wiki/Emanati...

Droppy94 aka Thierry OLIVIER

@droppy94.bsky.social

1 day ago

INTERPRETATION DES ECHECS EXPERIMENTAUX DU SECTEUR SOMBRE VIA ΛCDM - INTERPRETATION DANS LE CADRE TPE QCCC

Les recherches expérimentales sur la matière noire et l’énergie noire ont produit un constat surprenant : 1/4

1drv.ms/b/c/dc4eee1d...

#cosmology #astronomy

DUCK Writer-27.3

@duckwriter27-3.bsky.social

1 day ago

7️⃣ เอกภพมีพื้นที่เก็บข้อมูลจำกัด

⤷ แนวคิดนี้เรียกว่า 'Holographic Principle' หรือโฮโลแกรมที่ฉายภาพ 3 มิติจากฟิล์ม 2 มิติ
⤷ โดยข้อมูลทั้งหมดในเอกภพ อาจถูกเก็บไว้บน 'ขอบเขต' ของมัน
⤷ แต่หากยัดข้อมูลลงไปเกินค่าหนึ่ง พื้นที่นั้นจะกลายเป็น 'หลุมดำ' ทันที

📖 อ่านฟรี #SoulMate S1 EP25 - Decision
www.readawrite.com/c/916ce84847...

#Physics #Cosmology (5/5)

DUCK Writer-27.3

@duckwriter27-3.bsky.social

1 day ago

4️⃣ เล็กได้แค่จุดหนึ่ง
⤷ ในฟิสิกส์มีหน่วยความยาวที่เล็กที่สุด เรียกว่า Planck Length
⤷ มีค่า 1.6 × 10⁻³⁵ เมตร จนกฎฟิสิกส์ที่เรารู้จักเริ่มใช้ไม่ได้

5️⃣ มองได้แค่ที่แสงมาถึง
⤷ เรามองเห็นเอกภพได้ 13.8 พันล้านปี เพราะแสงเดินทางมาถึงเรา
⤷ แต่ขอบเขตเอกภพที่เรามองเห็นได้ กว้างใหญ่ถึง 93 พันล้านปีแสง เพราะอวกาศยืดออกระหว่างที่แสงเดินทาง

#QuantumPhysics #Cosmology (3/5)

DUCK Writer-27.3

@duckwriter27-3.bsky.social

1 day ago

🌌 ขีดจำกัดแห่งเอกภพ
🚀 DUCK Sci-fi

1️⃣ บทนำ
⤷ เอกภพเริ่มต้นจาก Big Bang เมื่อประมาณ 13.8 พันล้านปีก่อน และมีการขยายตัวอย่างต่อเนื่อง
⤷ เฉพาะเอกภพส่วนที่เรามองเห็นได้ ก็มีขนาดเส้นผ่านศูนย์กลาง 93 พันล้านปีแสง
⤷ แม้เอกภพจะใหญ่โตมหาศาล แต่ก็ยังถูกควบคุมด้วยกฎพื้นฐานของธรรมชาติ ที่ได้กำหนดขีดจำกัดเอกภพไว้หลายอย่าง ⤵️

#DUCKWriter27_3 #Cosmology #SciFi (1/5)

Sirius

@sirius2368.bsky.social

2 days ago

The Monad, Emanationism
And Numeric Progression

#Cosmology #Religion #Mathematics #Emantionism #NumericProgression #SacredGeometry #TheMonad #DininityAndDiversity

en.wikipedia.org/wiki/Emanati...

TIFEO — Trumble Infinite Friction-Emergence Ontology

@tifeontology.bsky.social

2 days ago

Trumble’s Ontology of Truth & Liberation TIFEOntology — No Myth. No Dogma. Just Precise Seeing.

Stability is not permanence.
Change is not failure.
The universe was not designed for a purpose.
It arose when frictions stabilized sufficiently.
It will dissolve when stability fades.
New patterns will continue to emerge.
TIFEO Day 7. trumbletruth.com
#philosophy #consciousness #TIFEO #cosmology

Sirius

@sirius2368.bsky.social

2 days ago

Emanationism

#Cosmology #Theology
#Emanationism
#AsAboveSoBelow
#OnEarthAsItIsInHeaven

en.wikipedia.org/wiki/Emanati...

Rob McConnell

@robmcconnell.bsky.social

2 days ago

Rob McConnell Interviews - MICHAEL NARDO - The Beginning Michael Nardo – The Beginning explores ideas about origins—whether the origins of the universe, consciousness, or humanity’s spiritual journey. In this interview, Nardo discusses philosophical and metaphysical perspectives on how existence began and how different traditions attempt to explain creation and the emergence of life. The conversation touches on science, spirituality, and ancient teachings, inviting listeners to reflect on humanity’s enduring quest to understand the fundamental question: how did everything begin?

📣 New Podcast! "Rob McConnell Interviews - MICHAEL NARDO - The Beginning" on @Spreaker #ancientteachings #awareness #consciousness #cosmology #creation #discussion #existence #exploration #inquiry #interview #lifeorigins #metaphysical #michaelnardo #mystery #origins #philosophy #science

Daniel Pomarède

@pomarede.bsky.social

3 days ago

Vela: the True Scale of a Hidden Giant Structure Revealed

www.sarao.ac.za/news/vela-th...

🧪 #Cosmology #Cosmicflows

Lazarou Monkey Terror 🚀💙🌈

@lazarou.mastodon.social.ap.brid.gy

3 days ago

Cosmic voids look empty but they may be tearing the uni- verse apart

As if the Boötes Void couldn't get more sinister....

#Astrodon #Astronomy #Cosmology #Science #Cthulhu

RichardJR

@electricbluesfan.bsky.social

3 days ago

1/11 🔭MEET MOTHRA: THE THOUSAND-EYED TELESCOPE 🔭

Astronomers in Chile are building a radical new array to find the hidden filaments tying our universe together.

Source: The Globe And Mail
#AstroSky #Space #Cosmology #MOTHRA #Astronomy

Daniel Pomarède

@pomarede.bsky.social

3 days ago

Hidden Vela Supercluster Revealed by First Hybrid Redshift & Peculiar Velocity Reconstruction A large fraction of the extragalactic sky is obscured by foreground dust and stars along the plane of the Milky Way, leaving a major gap (~ 20%) in whole-sky maps of large-scale structures -- an incom...

Cosmography alert 🚨

Hidden Vela Supercluster Revealed by First Hybrid Redshift & Peculiar Velocity Reconstruction

by Amber M. Hollinger and co-authors

arxiv.org/abs/2603.09339

🧪 #Cosmology #Cosmicflows

Gravitational-Waves

@gravitational-waves.activitypub.awakari.com.ap.brid.gy

3 days ago

The universe is humming with amazing ripples The universe is humming with more gravitational waves than ever recorded. Scientists just revealed the GWTC-4 catalog while preparing 170 additional det...

#Research #Astrophysics #BlackHoles #Cosmology […]

[Original post on nasaspacenews.com]

Supernovae

@supernovae.activitypub.awakari.com.ap.brid.gy

4 days ago

Astronomers Spot Bizarre Supernova That Could Unlock the Secret of Dark Energy A rare gravitationally lensed supernova could help astronomers determine how fast the universe is expanding and shed l...

#Space #Astrophysics #Cosmology #Dark #Energy #Liverpool […]

[Original post on scitechdaily.com]

Observatories

@observatories.activitypub.awakari.com.ap.brid.gy

4 days ago

JWST Detects Evidence of “Monster Stars” That May Have Created the Universe’s First Giant Black Holes Using the James Webb Space Telescope, an international team of researchers has discovered...

#Space #Astrophysics #Cosmology #James #Webb #Space #Telescope […]

[Original post on scitechdaily.com]

Droppy94 aka Thierry OLIVIER

@droppy94.bsky.social

4 days ago

a 3d rendering of a ball being hit by a hammer on a pink background . Alt: a 3d rendering of a ball being hit by a hammer on a pink background .

Deep reality is not made up of things, but of relationships.
Objects have no intrinsic identity: they are defined by their morphisms.

La réalité profonde n’est pas faite de choses, mais de relations.
Les objets n’ont pas d’identité intrinsèque : ils sont définis par leurs morphismes.

#cosmology

Droppy94 aka Thierry OLIVIER

@droppy94.bsky.social

4 days ago

Assertion: "Quantum gravity is not a new force:
it is a regime of strong coupling between geometry and information."

Your thoughts?

Assertion : "La gravité quantique n’est pas une nouvelle force :
c’est un régime de couplage fort entre géométrie et information."

Vos idées ?
#astronomy #cosmology

@byteandpieces.bsky.social

5 days ago

Leveling Up Humanity: Why We’re Still at Level Zero 🚀 Are we the masters of the universe, or just cosmic toddlers playing with matches? If you think your monthly electricity bill is a nightmare, imagine the power required to harvest the output of an entire star. Welcome to the Kardashev Scale, the ultimate galactic leaderboard that ranks civilizations by their technological maturity and energy consumption. Currently, humanity is stuck as a "Type 0" rookie, but the jump to a Type I civilization—and the god-like potential that comes with it—might be closer than you think. 🌌 In this thrilling episode, we dive into the sheer audacity of Type II and Type III societies. Why are we still burning rocks when we could be building Dyson Spheres? We explore the breathtaking potential of interstellar travel, the physics of immortality, and the controversial theory that ancient ruins like the pyramids aren't just tombs, but remnants of a lost, high-tech predecessor that already mastered the Earth eons ago. 🛸 What we’re uncovering in this cosmic journey: - ⚡ The Kardashev Scale Explained: From planet-takers to galaxy-shakers. - 🏗️ Megastructures & Dyson Spheres: The ultimate engineering hack for infinite energy. - 👽 The Fermi Paradox & The Great Filter: Why is the universe so quiet, and are we the next to disappear? - 🏺 Forbidden History: Evidence of advanced civilizations on Earth before recorded time. - 🌌 Cosmic Evolution: The existential hurdles we must clear to survive across the multiverse. This isn't just a science lesson; it’s a meditation on our survival and cosmic potential. Whether you’re a dreamer, a skeptic, or a future space-colonist, this conversation will rewire how you see the night sky. 🧠 Stop living in the dark and step into the light of the future. If this episode blew your mind, subscribe, leave a 5-star review, and share this with someone who's ready to ascend. Let’s climb the scale together. 🚀✨  

📣 New Podcast! "Leveling Up Humanity: Why We’re Still at Level Zero" on @Spreaker #aliens #ancienthightechnology #astrophysics #civilization #cosmology #darkforesttheory #dysonsphere #energy #evolution #fermiparadox #futurism #greatfilter #kardashevscale #michiokaku #silurianhypothesis

RichardJR

@electricbluesfan.bsky.social

5 days ago

1/9 🔭JWST BROKE THE MOLD AGAIN 🔭

Meet CEERS2-588. A galaxy from the dawn of time that looks... middle-aged?

Massive, metal-rich, and strangely quiet. It’s forcing theorists to rethink early cosmic history.

Source: Astrobites
#Astronomy #JWST #Cosmology #Space #Science #Astrophysics

Astronomy

@astronomy.activitypub.awakari.com.ap.brid.gy

5 days ago

She’s Not Like the Other Galaxies: The Nearly-Impossible Qualities of CEERS2-588 Galaxy-modelers beware! Today’s bite will guide you through an analysis of CEERS2-588, a quirky, UV-luminous, ea...

#Daily #Paper #Summaries #cosmology #galaxy #formation #high […]

[Original post on astrobites.org]

@byteandpieces.bsky.social

6 days ago

The Big Bang Was NOT The Beginning: What Science Finally Found 🌌 Is Your Reality Just a 'Reboot'? What Actually Happened Before the Big Bang? What if I told you that the Big Bang wasn’t the beginning, but just a messy 'refresh' button in an infinite cosmic cycle? 🤯 Most people believe the universe started from nothing, but the latest breakthroughs in theoretical physics suggest we are living in the aftermath of something much larger, older, and far more chaotic. If you’ve ever felt like a tiny speck in a vast multiverse, you’re more right than you know—and the truth is way more controversial than your high school science teacher let on. In this mind-bending episode, we deconstruct the most gripping pre-Big Bang theories that are currently shaking the foundations of modern cosmology. We aren't just talking about stars and planets; we’re talking about the 'Before Times'—a realm of quantum fluctuations and higher-dimensional collisions where the laws of physics as we know them simply cease to exist. Here’s what we’re diving into: - ♻️ The Big Bounce vs. Conformal Cyclic Cosmology: Is our universe just one link in an eternal chain of deaths and rebirths? - 🫧 Eternal Inflation & The String Landscape: Why you might just be a 'statistical accident' living inside one tiny bubble of a chaotic, infinite multiverse. - ⏳ Mirror Universes: The shocking theory of a 'twin' reality where time flows backward and everything we know is mirrored. - 🌀 Quantum Voids: How reality emerges from high-energy 'nothingness' through sheer mathematical probability. Whether we are the byproduct of higher-dimensional collisions or a recurring glitch in a mathematical cycle, one thing is certain: the 'singular beginning' is a myth. We explore why string theory and quantum gravity are rewriting the human story, turning our 'unique' creation into a beautiful, random, and potentially infinite cosmic accident. 🌠 Stop settling for the simple answers. If you’re ready to have your existential clock turned upside down and join the debate on the origins of space-time, this is the deep dive you’ve been waiting for. 👉 Don’t miss out on the cosmic truth! Subscribe now and hit the notification bell to join our community of thinkers as we unravel the mysteries of the cosmos together. Share this episode with someone who loves a good existential crisis! ✨ #BigBang #Cosmology #Multiverse #Physics #SpaceTime #Astronomy #QuantumPhysics #OriginOfUniverse #SciencePodcast  

📣 New Podcast! "The Big Bang Was NOT The Beginning: What Science Finally Found" on @Spreaker #astronomy #astrophysics #bigbounce #cosmicrebirth #cosmology #jwst #mirroruniverse #multiverse #physics #prebigbang #quantum #quantumphysics #rogerpenrose #science #sciencefacts #space #spacetime #time

RichardJR

@electricbluesfan.bsky.social

1 week ago

1/7 🌌 THE UNIVERSE IS STILL ACCELERATING 🌌

Last year, a controversial paper claimed cosmic expansion was slowing down. A new study says: Not so fast.

The "bias" was already fixed.

Source: Skylar Grayson, Astrobites
#Cosmology #Astronomy #Physics #DarkEnergy #HubbleTension

Astronomy

@astronomy.activitypub.awakari.com.ap.brid.gy

1 week ago

Standardizing Standard Candles: Exploring the (lack of a) Bias in Cosmological Distance Measurements Today's paper tests some recent claims that there is a bias in cosmological distance measure...

#Daily #Paper #Summaries #cosmology #Hubble #constant #Hubble […]

[Original post on astrobites.org]

Geraint F. Lewis

@cosmichorizons.bsky.social

1 week ago

Time to start advertising my next book to be released in Australia at the end of June (right cover) and the US in September (left cover). A most wonderful Christmas present!

#scicomm #physics #cosmology #science

Observatories

@observatories.activitypub.awakari.com.ap.brid.gy

1 week ago

**Spot the dot** Little red dots appear in every pointing of the JWST imaging camera NIRCam. Credit: UNCOVER (PIs: I Labbe and R Bezanson) Every new instrument needs its mysteries, and no discovery of the James Webb Space Telescope (JWST) has been more surprising than the “little red dots” it discovered in the early universe. Four years after their discovery, their nature is still an open question, with new papers purporting to solve the mystery on an almost daily basis. These unexpected objects came into view in JWST’s first data release in 2022 thanks to its sharp images and sensitivity in the near infrared. By summer of 2023, a number of discovery papers had been written about them, identifying three traits in common: they were compact in size, had unusual “V-shaped” spectra and they showed emission from high-velocity hydrogen gas. Due to their compact size and red colour in the rest frame, they were dubbed little red dots. A few appeared in every pointing of the JWST imaging camera NIRCam, accounting for a few percent of all known galaxies in the first billion years of cosmic time. The race was on to determine their nature. Two options initially appeared possible, but both were extraordinary and required a very precise tuning of parameters to fit the observations: too-dense galaxies or too-massive supermassive black holes. In either case, the objects had to be enshrouded in a cocoon of dust. ### **Galaxies or black holes?** The first paper assumed they were very massive galaxies, with their stars all assembled less than a billion years after the Big Bang. In favour of the galactic hypothesis were the V-shaped spectra, which are difficult to model without invoking massive stars. The vertex of the V-shape resembles a “Balmer break”, which is produced by the absorption of hydrogen atoms in the n = 2 level. Longward of the break, the optical continuum rises steeply toward the red, which this model attributed to the reddening of these stars by dust, with the UV being produced by starlight that was scattered out of the dust screen. However, the very high masses and early-universe star formation rates required for these models were difficult to reconcile with our understanding of the rate at which galaxies and their dark-matter halos assemble. > The first paper assumed they were very massive galaxies, with their stars all assembled less than a billion years after the Big Bang The black-hole hypothesis was supported by evidence for very dense gas clouds moving at thousands of kilometres per second in the potential of a massive black hole. In this picture, surrounding dust would preferentially absorb ultraviolet light and re-emit it at longer wavelengths, producing the observed red colour. Though this explanation promised to alleviate the tension arising from the implied galaxy masses, it quickly became clear that these objects were not typical growing black holes. They were not detected in X-rays, nor did they show the characteristic 1000 K dust signature that is ubiquitous in actively accreting black holes. However, the most concerning piece of the black-hole interpretation was the implied black-hole masses. Applying local calibrations to the observed motion of gas in the little red dots implied black-hole masses of ten million to a billion suns, compared with galaxy masses of the same order – a stark contrast with local black holes, which have masses roughly a thousandth of their host galaxies. These overly massive black holes are hard to grow so far in advance of the galaxies, and also overproduce the total amount of black-hole mass created at such an early time. ### **Explaining their redness** Two major breakthroughs occurred in 2024 that clarified the nature of the little red dots. All the aforementioned models invoked heavy amounts of dust to suppress ultraviolet emission and produce the observed red colours. The conservation of energy implies that all the absorbed radiation should be re-emitted by the dust. However, multiple studies of populations and of luminous individual sources turned up non-detections of dust emission. These stringent limits on the far-infrared energy output were enough to conclusively rule out these entire classes of models, invoking reddening by dust to explain the observed red colours. At the same time, campaigns to observe the broad population of little red dots discovered a remarkable class of sources with very little ultraviolet emission and extreme Balmer breaks. These breaks could not be produced by anything resembling a stellar population we have observed before, and served as conclusive evidence that normal stars cannot be responsible for producing the optical emission in little red dots; the photoabsorption by hydrogen in the n = 2 energy state must nevertheless be a crucial physical aspect of the little red dots, even if it wasn’t happening in the atmospheres of massive stars. ### **Plausible scenarios** The challenge is therefore to explain the characteristic red colour of the little red dots without dust obscuration. Any successful model would also need a substantial reservoir of hydrogen around to cause the hydrogen absorption that looked like starlight, but wasn’t. One plausible scenario that could satisfy these requirements is very dense gas arranged quasi-spherically around the black hole. In this scenario, the black holes powering the little red dots could be significantly less massive than we had originally thought, when we had assumed that dust was obscuring most of the light from the growing black hole. > The task is to explain the characteristic red colour of the little red dots without dust obscuration In this new picture, the little red dots are powered by black holes that are accreting at much higher rates than are typically seen at later times. A higher accretion rate implies greater luminosity for a given black-hole mass, and therefore we infer much lower black-hole masses, perhaps closer to a million suns, and much more aligned with the measured galaxy masses. As a side benefit, lower black-hole masses are much more natural for objects that are so prevalent, because the number of low-mass dark-matter halos and low-mass galaxies is much higher than the number of high-mass systems. Astronomers are still arguing about how this dense gas is configured and accretes onto the black hole, and everyone has their favourite model. We do not know if the geometry of the system is completely spherical, or if we are seeing a mixed-phase medium where the viewing angle is an important parameter. These details matter, because if we can pin down the characteristic size and density of these gas envelopes, we may be able to infer more robust black-hole masses for the population. There has been some recent speculation that the little red dots may be marking the end stages of black-hole seed growth, in which case they could be a critical missing link in our understanding of the formation of the first black holes. However, without more concrete constraints on black-hole mass, we cannot know for sure. At the same time, we need a much better theoretical understanding of what makes little red dots so distinct from the more typical growing black holes we have studied for decades, and why that mode of growth becomes so much less common as the universe ages. One thing we do know for sure: the more we learn about the little red dots, the more complex and unexpected they become. We are excited to see what new wrinkles arise as we enter our fifth year of JWST operations.

The mystery of the little red dots Every new instrument needs its mysteries, and no discovery of the James Webb Space Telescope (JWST) has been more surprising than the “little red dots” it dis...

#Astrophysics #and #cosmology

Origin | Interest | Match

NC Sayers

@ncsayers.bsky.social

1 week ago

The Sun Is 'Glitching.' Scientists Investigated and Solved a Cosmic Mystery Scientists studied tiny, abnormal vibrations—called “glitches”—to discover what happens inside the Sun while it undergoes phases of low activity.

Well, that’s one way to discover an idea for a science fiction story. #sff #SpecFic #SpecLit #WriteSky #WriterSky #WritingCommunity #sun #cosmology

www.404media.co/the-sun-is-g...