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Archive for the ‘cosmology’ category: Page 108

Jun 14, 2023

A brilliant cosmic burst 100 times as bright as our galaxy came from 2 black holes circling each other, study finds

Posted by in category: cosmology

The smaller black hole, with a mass of about 150 million suns, orbits its larger companion, with a mass of 18 billion suns, at near the speed of light.

It’s this rapid dance that sparked the bright flare from this system, according to a new study published in Monthly Notices of the Royal Astronomical Society in March.

The recorded burst, which astronomers observed in February 2022, occurred when the smaller black hole crashed into a disk of gas surrounding the larger black hole, the study’s scientists said.

Jun 13, 2023

Photographer Captures ISS Crossing the Sun During Astronaut Spacewalk

Posted by in categories: cosmology, solar power, sustainability

An astrophotographer captured the ISS crossing the Sun as two astronauts were conducting a spacewalk to install solar panels.

Jun 13, 2023

Controversial claim from Nobel Prize winner: The universe keeps dying and being reborn

Posted by in categories: cosmology, mathematics, physics

Editor’s note: For a more mainstream assessment of this idea, see this article by Dr. Ethan Siegel.

Sir Roger Penrose, a mathematician and physicist from the University of Oxford who shared the Nobel Prize in physics in 2020, claims our universe has gone through multiple Big Bangs, with another one coming in our future.

Continue reading “Controversial claim from Nobel Prize winner: The universe keeps dying and being reborn” »

Jun 12, 2023

The Cosmic Connectome: Our Universe is a Giant Brain, According to Scientists

Posted by in categories: cosmology, neuroscience

A new research at the intersection of cosmology and neurobiology implies that diverse physical processes lead to similar levels of complexity and self-organization present in structures of scales.

An astrophysicist at the University of Bologna and a neurosurgeon at the University of Verona compared the network of neuronal cells in the human brain with the cosmic network of galaxies and found astounding similarities.

In their paper ‘The quantitative comparison between the neuronal network and the cosmic web’ published in Frontiers in Physics, Franco Vazza, astrophysicist at the University of Bologna, and Alberto Feletti, neurosurgeon at the University of Verona, investigated the similarities between two of the most complex systems in existence: the cosmic web of galactic superclusters and the network of neuronal cells in the human brain.

Jun 12, 2023

NASA’s Webb Proves Galaxies Transformed the Early Universe

Posted by in category: cosmology

Cave divers equipped with brilliant headlamps often explore cavities in rock less than a mile beneath our feet. It’s easy to be wholly unaware of these cave systems – even if you sit in a meadow above them – because the rock between you and the spelunkers prevents light from their headlamps from disturbing the idyllic afternoon.

Apply this vision to the conditions in the early universe, but switch from a focus on rock to gas. Only a few hundred million years after the big bang, the cosmos was brimming with opaque hydrogen gas that trapped light at some wavelengths from stars and galaxies. Over the first billion years, the gas became fully transparent – allowing the light to travel freely. Researchers have long sought definitive evidence to explain this flip.

New data from the James Webb Space Telescope recently pinpointed the answer using a set of galaxies that existed when the universe was only 900 million years old. Stars in these galaxies emitted enough light to ionize and heat the gas around them, forming huge, transparent “bubbles.” Eventually, those bubbles met and merged, leading to today’s clear and expansive views.

Jun 11, 2023

Stephen Hawking’s most famous prediction could mean that everything in the universe is doomed to evaporate, new study says

Posted by in category: cosmology

A new theory has radically revised Stephen Hawking’s 1974 theory of black holes to predict that all objects with mass may eventually disappear.

Jun 11, 2023

Largest explosion since the Big Bang was powered by a bizarre energy jet unlike any other

Posted by in category: cosmology

The enormous gamma-ray burst, called the Brightest Of All Time (or BOAT), may be powered by its strange jet structure, scientists say.

Jun 10, 2023

Dark matter atoms may form shadowy galaxies with rapid star formation

Posted by in categories: cosmology, evolution, particle physics

Dark matter, the invisible material that makes up the vast majority of the universe’s mass, may collect itself to form atoms, a new simulation shows.

Those “dark atoms” might radically alter the evolution of galaxies and the formation of stars, giving astronomers a new opportunity to understand this mysterious substance.

Jun 10, 2023

A telescope accidentally captured the brightest supernova ever seen

Posted by in category: cosmology

Cokada/iStock.

This is according to a report by Ars Technica published on Friday.

Jun 8, 2023

“It’s a Black hole!” James Webb Telescope Discovers 45,000+ Galaxies at the Edge of the Universe!

Posted by in category: cosmology

https://www.youtube.com/watch?v=qycugq5PAQM

“The Universe Came From a Black Hole” String Theory Founder Reveals James Webb Telescope’s New Image. Deep within dense star clusters, something extraordinary dwells: Stars. But these, are no ordinary stars, but colossal celestial beings, known as supermassive stars. And now, their existence has been unveiled by the piercing gaze of the James Webb Space Telescope.

According to the standard model of cosmology, after the universe came out of the big bang, it took between 500 million to 1 billion years for the first stars to form. That however, is changing.

Continue reading “‘It’s a Black hole!’ James Webb Telescope Discovers 45,000+ Galaxies at the Edge of the Universe!” »