Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: cosmology

First Dawn of Universe Simulation: EWOG

From Dark till First Dawn of Universe Simulation: EWOG Quantum Gravity Theory.

🚀From Dark till First Dawn of Universe Simulation: Why EWOG is promising to the Cosmic Race! 🌌 https://lnkd.in/gFBNsKtq Ever wonder how the James Webb Space Telescope (JWST) keeps finding massive, mature galaxies that “shouldn’t exist” yet? Standard cosmology (ΛCDM) is struggling to explain this without extreme fine-tuning. But Entanglement-Weighted Operator Gravity (EWOG) provides a first-principles answer. đŸ§© The “Quantum Turbo” Effect In the dense early universe, high quantum entanglement between matter and geometry temporarily boosted gravity’s strength. The Core Idea: Gravity isn’t a constant; it’s an operator weighted by entanglement (ĆŽ). * Curvature from Commutators: R̂ᔀᔄ = [∇̂ᔀ, ∇̂ᔄ] * The Boosted Coupling: G_eff(a, k) = G_N [1 + α₀(1 — eâ»á”Êł)ℱ] This “turbo boost” allowed gas to collapse into stars 150,000 years earlier than standard models predict.

First direct evidence of Migdal effect opens new path for dark matter search

In a landmark discovery that bridges nearly a century of theoretical physics, a Chinese research team has successfully captured the first direct evidence of the Migdal effect, a breakthrough with profound implications for probing dark matter—the invisible substance thought to make up roughly 85% of the universe.

The finding, published in the journal Nature, confirms a prediction made in 1939 by Soviet physicist Arkady Migdal: When an atomic nucleus suddenly gains energy—for instance, from a collision with a neutral particle (like a neutron or a dark matter candidate)—and recoils, the rapid shift in the atom’s internal electric field can eject one of its orbiting electrons.

For nearly nine decades, this “electron ejection” process remained purely theoretical. Direct evidence proved elusive because the effect occurs on an incredibly tiny scale and is easily masked by background noise from cosmic rays and natural radiation.

What Is the Universe, Really? | Leonard Susskind

When we talk about the universe, we usually imagine space filled with galaxies, stars, and matter expanding endlessly in all directions. It feels natural to think of the universe as a vast container — a place where everything exists. But modern theoretical physics suggests that this picture may be deeply misleading.

In this video, we explore a more fundamental question: what is the universe really made of? Is it space? Matter? Energy? Or something far more abstract than our everyday intuition allows?

Drawing on ideas associated with Leonard Susskind, this long-form exploration challenges the assumption that the universe is a physical stage where reality takes place. Instead, physics increasingly points toward a universe defined not by objects and locations, but by information, relationships, and boundaries.

Black hole physics, quantum theory, and modern cosmology have forced scientists to rethink the foundations of reality. In some of the deepest descriptions of nature, space and time no longer appear as fundamental ingredients. What we experience as a three-dimensional universe may be an emergent structure — a convenient description rather than the true underlying reality.

Rather than focusing on equations, this video emphasizes intuition and conceptual understanding. Through thought experiments and simple analogies, we examine why the universe feels like a place, why that picture works so well at human scales, and why it may break down at the most fundamental level.

X-ray observations reveal hidden disturbances in galaxy cluster Abell 3571

Using the Einstein Probe (EP), astronomers from China and Germany have observed a nearby galaxy cluster known as Abell 3571. Results of the observational campaign, published January 8 on the arXiv pre-print server, provide more insights into the X-ray properties and structure of this cluster.

Galaxy clusters contain up to thousands of galaxies bound together by gravity. They generally form as a result of mergers and grow by accreting sub-clusters. Therefore, they could serve as excellent laboratories for studying galaxy evolution and cosmology.

Abell 3,571, or A3571, is a rich galaxy cluster in the Shapley Supercluster, at a redshift of 0.039. It has a radius of about 5.5 million light years and its mass is estimated to be 910 trillion solar masses. The brightest cluster galaxy (BCG) of Abell 3,571 is MCG–05–33–002, which exhibits a pronounced north-south elongation.

A Nearby Galaxy Is Being Torn Apart by Its Own Supermassive Black Hole

A nearby galaxy is launching an enormous stream of super-heated gas, driven by a precessing jet from its central black hole. University of California, Irvine astronomers report that they have identified the largest known stream of super heated gas ever seen flowing out of a galaxy. The outflow is c

Wormholes may not exist—we’ve found they reveal something deeper about time and the universe

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen.

In 1935, while studying the behavior of particles in regions of extreme gravity, Einstein and Rosen introduced what they called a “bridge”: a mathematical link between two perfectly symmetrical copies of spacetime. It was not intended as a passage for travel, but as a way to maintain consistency between gravity and quantum physics. Only later did Einstein–Rosen bridges become associated with wormholes, despite having little to do with the original idea.

But in new research published in Classical and Quantum Gravity, my colleagues and I show that the original Einstein–Rosen bridge points to something far stranger—and more fundamental—than a wormhole.

Ancient Type II supernova discovered from universe’s first billion years

Using the James Webb Space Telescope (JWST), an international team of astronomers has discovered a new Type II supernova. The newly detected supernova, named SN Eos, exploded when the universe was only 1 billion years old. The finding was reported January 7 on the arXiv pre-print server.

Supernovae (SNe) are powerful and luminous stellar explosions. They are important for the scientific community as they offer essential clues into the evolution of stars and galaxies. In general, SNe are divided into two groups based on their atomic spectra: Type I (no hydrogen in their spectra) and Type II (showcasing hydrogen spectral lines).

Type II SNe are the result of rapid collapse and violent explosion of massive stars (with masses above 8.0 solar masses). Type II core-collapse supernovae (CC SNe), which can be brighter than the total emission of their host galaxies, allow astronomers to probe the final stages of stellar evolution, and studies of early-universe Type II CC SNe could be crucial to constrain early stellar evolution models.

NASA’s Hubble Examines Cloud-9, First of New Type of Object

A team using NASA’s Hubble Space Telescope has uncovered a new type of astronomical object — a starless, gas-rich, dark-matter cloud considered a “relic” or remnant of early galaxy formation. Nicknamed “Cloud-9,” this is the first confirmed detection of such an object in the universe — a finding that furthers the understanding of galaxy formation, the early universe, and the nature of dark matter itself.

“This is a tale of a failed galaxy,” said the program’s principal investigator, Alejandro Benitez-Llambay of the Milano-Bicocca University in Milan, Italy. “In science, we usually learn more from the failures than from the successes. In this case, seeing no stars is what proves the theory right. It tells us that we have found in the local universe a primordial building block of a galaxy that hasn’t formed.”

The results, published in The Astrophysical Journal Letters, were presented at a press conference Monday at the 247th meeting of the American Astronomical Society in Phoenix.

/* */