Frontier, the second fastest supercomputer in the world, used dark matter and the movement of gas and plasma rather than just gravity to model the observable universe.
Category: cosmology
A comprehensive video explaining quantum gravity.
Here I discuss EPR or ER and discuss three experiment. Here I took information from professor Leonard Susskind lectures note book and some idea is taken from physics books notes.
Traditional black holes, as predicted by Albert Einstein’s theory of General Relativity, contain what are known as singularities, i.e., points where the laws of physics break down. Identifying how singularities are resolved in the context of quantum gravity is one of the fundamental problems in theoretical physics.
Now, a team of experts from the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) has described for the first time the creation of regular black holes from gravitational effects and without the need for the existence of exotic matter required by some previous models.
This discovery, published in the journal Physics Letters B, opens up new prospects for improving our understanding of the quantum nature of gravity and the true structure of space-time.
High-energy particles rain down on Earth constantly, but scientists have now detected a doozy: a neutrino blasting in from deep space with an energy far greater than anything we’ve seen before.
On 13 February 2023, an undersea detector off the coast of Sicily picked up a record-breaking neutrino event. The particle’s energy was estimated to be a whopping 220 petaelectronvolts (PeV) – for reference, the previous record-holder is a paltry 10 PeV.
Only a handful of astronomical objects are capable of accelerating particles to such extreme energies, such as supernovae or black holes. One possible culprit could be a blazar – a particularly active supermassive black hole that’s firing a jet of radiation almost directly at Earth.
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AI, Deep Dive, spacetime inertia, unified energy framework, gravity, dark matter, dark energy, black holes, emergent gravity, energy inertia, mass-energy interactions, missing mass problem, cosmic expansion, event horizon mechanics, Einstein’s General Relativity, spacetime curvature, galactic rotation curves, quantum field theory, spacetime as energy, energy resistance, inertial effects, graviton alternative, energy density distribution, inverse-square law, gravitational lensing, galactic halos, high-energy cosmic regions, X-ray emissions, electromagnetic fields, cosmological constant, accelerating universe, large-scale inertia, spacetime resistance, event horizon physics, singularity alternatives, James Webb Space Telescope, early galaxy formation, modified gravity, inertia-driven cosmic expansion, energy saturation point, observational cosmology, new physics, alternative gravity models, astrophysical testing, theoretical physics, unification of forces, experimental validation, fundamental physics revolution, black hole structure, cosmic energy fields, energy gradient effects, resistance in spacetime, extreme energy zones, black hole event horizons, quantum gravity, astrophysical predictions, future space observations, high-energy astrophysics, cosmic structure formation, inertia-based galaxy evolution, spacetime fluid dynamics, reinterpreting physics, mass-energy equivalence.
Description:
In this deep dive into the nature of gravity, dark matter, and dark energy, we explore a groundbreaking hypothesis that could revolutionize our understanding of the universe. What if gravity is not a fundamental force but an emergent property of spacetime inertia? This novel framework, proposed by Dave Champagne, reinterprets the role of energy and inertia within the fabric of the cosmos, suggesting that mass-energy interactions alone can account for gravitational effects—eliminating the need for exotic matter or hypothetical dark energy forces.
We begin by examining the historical context of gravity, from Newton’s classical mechanics to Einstein’s General Relativity. While these theories describe gravitational effects with incredible accuracy, they still leave major mysteries unsolved, such as the unexplained motions of galaxies and the accelerating expansion of the universe. Traditionally, these anomalies have been attributed to dark matter and dark energy—hypothetical substances that have yet to be directly observed. But what if there’s another explanation?
Euclid, a space telescope on a mission to uncover the secrets of dark matter and dark energy, has already made a stunning discovery: a perfectly formed Einstein ring hidden in a well-known galaxy.
This rare phenomenon, predicted by Einstein’s theory of relativity, reveals the power of gravitational lensing, allowing scientists to glimpse far-off galaxies otherwise invisible. The find is a testament to Euclid’s groundbreaking capabilities, suggesting a future filled with even more cosmic surprises.
Euclid’s Mission Begins
An international team of astronomers has investigated a newly detected Type II supernova designated SN 2024jlf. The new study, detailed in a paper published Jan. 30 on the arXiv pre-print server, yields important information regarding the evolution of this supernova and the nature of its progenitor.
Type II supernovae (SNe) are the results of rapid collapse and violent explosion of massive stars (with masses above 8.0 solar masses). They are distinguished from other SNe by the presence of hydrogen in their spectra.
Based on the shape of their light curves, they are usually divided into Type IIL and Type IIP. Type IIL SNe show a steady (linear) decline after the explosion, while Type IIP exhibit a period of slower decline (a plateau) that is followed by a normal decay.
Theoretical physicists have long been trying to devise a complete theory of gravity that would also account for quantum mechanics phenomena, as existing models do not. Such a theory could collectively explain the many intricate physical and cosmological phenomena observed over the past decades.
Researchers at University of Maryland and University of British Columbia recently carried out a theoretical study exploring the possibility that holography, an approach to quantum gravity that includes some features of conventional holograms, could be used to describe quantum mechanical phenomena. Their paper, published in Physical Review Letters, introduces a theoretical argument that could suggests a link between observable cosmological phenomena and the physics that would underpin wormhole spacetimes.
“Coming up with a theory of gravity that includes the physics of quantum mechanics has been a major forefront area in theoretical physics for decades,” Mark Van Raamsdonk, one of the researchers who carried out the study, told Phys.org. “This is necessary to really understand the physics of black holes and the Big Bang, and to make progress towards a fully unified theory of physics.
Scattering takes place across the universe at large and miniscule scales. Billiard balls clank off each other in bars, the nuclei of atoms collide to power the stars and create heavy elements, and even sound waves deviate from their original trajectory when they hit particles in the air.
Understanding such scattering can lead to discoveries about the forces that govern the universe. In a recent publication in Physical Review C, researchers from Lawrence Livermore National Laboratory (LLNL), the InQubator for Quantum Simulations and the University of Trento developed an algorithm for a quantum computer that accurately simulates scattering.
“Scattering experiments help us probe fundamental particles and their interactions,” said LLNL scientist Sofia Quaglioni. “The scattering of particles in matter [materials, atoms, molecules, nuclei] helps us understand how that matter is organized at a microscopic level.”
Scientists have just discovered the largest structure ever found in the universe, and it’s changing everything we thought we knew about space! Quipu, a superstructure spanning 1.3 billion light-years, is bending light, distorting cosmic expansion, and even affecting the Cosmic Microwave Background. What does this mean for our understanding of dark matter, energy, and galaxy evolution? Watch this video to explore Quipu’s secrets and their impact on the universe! 🚀✨ paper link: https://arxiv.org/abs/2501.19236 MUSIC TITLE : Starlight Harmonies MUSIC LINK : https://pixabay.com/music/pulses-starlight-harmonies-185900/ Visit our website for up-to-the-minute updates: www.nasaspacenews.com Follow us Facebook: https://www.facebook.com/nasaspacenews Twitter: https://twitter.com/SpacenewsNasa Join this channel to get access to these perks: https://www.youtube.com/channel/UCEuhsgmcQRbtfiz8KMfYwIQ/join #NSN #NASA #Astronomy#SpaceDiscovery #Quipu #LargestStructure #Astronomy #Cosmos #BiggestThingInSpace #DarkMatter #GalaxyClusters #SpaceScience #NASA #Astrophysics #CosmicWeb #ScienceNews #MindBlowing #Intergalactic #BlackHoles #Physics #TimeAndSpace #Superstructure #Galaxies #Universe #Science #Exoplanets #MilkyWay #Astronomers #XrayMapping #SpaceTech #BeyondTheStars #FutureOfSpace #CosmicEvolution …