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universetoday.com /3 weeks ago

Black Holes Don't Live Forever, But They Might Live Long Enough To Look Like White Holes

Black holes evaporate through Hawking radiation, meaning their days are numbered. But a new study finds they could enter a metastable stage where they look similar to white holes.

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universetoday.com /1 month ago

Exploding Stars, Black Holes, and the Forbidden Gap

An international team led by Monash University has uncovered evidence of a rare form of exploding star, helping to shed light on one of the most cataclysmic events in the universe....

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phys.org /1 month ago

Shredded stars reveal how black holes ignite trillion-sun flares

Supermassive black holes are among the most enigmatic objects in the universe. They typically weigh millions or even billions of times the mass of the sun and sit at the centers of...

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phys.org /2 weeks ago

Black holes don't live forever, but they might live long enough to look like white holes

Black holes live forever, at least according to general relativity. Once material crosses a black hole's event horizon, it is trapped forever, until the last day of cosmic time. Bu...

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physics.mit.edu /2 weeks ago

Astronomers may have found a record-breaking pair of black holes

Michael McDonald, Scott Hughes, Michael Reefe, Abell 402-BCG, James Webb Space Telescope, JWST, Very Large Telescope of the European Southern Observatory, black holes, Link redirec...

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wired.com /6 days ago

The Universe Is Full of ‘Impossible’ Black Holes. Now Scientists Know Why

There are black holes that are too big to be born from the death of a star but aren’t quite supermassive either. There’s finally evidence for where those came from.

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universetoday.com /1 month ago

The Stars Feeding our Galaxy’s Monster

At the heart of our Galaxy lurks a supermassive black hole four million times the mass of our Sun. For decades, astronomers have watched mysterious gas clouds drifting towards it o...

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universetoday.com /2 weeks ago

The Universe's Biggest Black Holes Aren't Born, They're Built

When a massive star dies, it can leave behind a black hole. That much has been understood for decades. But the most monstrous black holes in the universe, the heavyweights detected...

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phys.org /1 day ago

Webb reveals black hole that formed before its galaxy

Which comes first, the galaxy or the black hole? We don't know, but scientists have long thought it could be the galaxy: Large stars within an existing galaxy consume their fuel an...

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scitechdaily.com /1 month ago

Black Hole Jets Pack Power of 10,000 Suns, Stunning New Study Reveals

New observations reveal how black hole jets behave under pressure, offering a crucial benchmark for understanding their role in cosmic evolution. A new study led by Curtin Universi...

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universetoday.com /3 days ago

When Spacetime Crystallises, a Black Hole is Born

Physicists have thought for decades that microscopic black holes can theoretically emerge not from exploding stars but from delicate "critical states" in which space and time organ...

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wired.com /1 month ago

Dark Matter May Be Made of Black Holes From Another Universe

A model of the cyclic universe suggests that dark matter could be a population of black holes predating the Big Bang.

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nanowerk.com /3 weeks ago

Biggest black holes built up in busy star clusters after series of violent merging events

Most massive black holes detected via spacetime ripples likely grew from repeated violent collisions in dense star clusters, not direct star collapse.

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skyandtelescope.org /1 month ago

Have We Found the Black Hole Desert?

Astronomers disagree on whether they’ve found evidence that stars don’t make certain sizes of black hole. The post Have We Found the Black Hole Desert? appeared first on Sky &...

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universetoday.com /1 month ago

How a Black Hole and a Shredded Star Could Light Up a Galaxy

In 2014, a strange cloudy object called G2 made a close approach to Sagittarius A*, (Sag A*) the supermassive black hole at the heart of the Milky Way Galaxy. Astronomers were pret...

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sciencealert.com /1 month ago

What if Dark Matter Is Actually Black Holes From Another Universe?

Quantum physics contains a powerful clue to how this is possible.ScienceAlert stories are written, fact-checked, and edited by humans, never generated by AI. Don't miss a story, su...

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scienceblog.com /1 month ago

The Ghostly Particles That May Have Built the Universe’s First Monster Black Holes

Before the first star had ignited, before any galaxy had taken shape, the universe was full of gas: cold, pristine, mostly hydrogen, floating in the dark. In certain pockets of tha...

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phys.org /1 month ago

Gravitational waves suggest a 'forbidden zone' for stellar-origin black holes

An international team led by Monash University has uncovered evidence of a rare form of exploding star, helping to shed light on one of the most cataclysmic events in the universe....

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gizmodo.com /1 month ago

Mysterious ‘Red Dot’ Galaxies Could Have ‘Relic’ Black Holes Predating the Big Bang

A new study explains how dense pockets of matter could have survived over an age-old cycle of multiple ‘Big Bangs.’

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scienceblog.com /1 month ago

Black Hole That Dances in the Wind Finally Tells Us How Powerful Its Jets Really Are

For eighteen years, the radio telescopes kept watching. Observation after observation, the hard-state jets of Cygnus X-1 appeared in the data as twin lines extending from the compa...

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phys.org /3 days ago

Where are all the intermediate mass black holes? Microlensing fast radio bursts might reveal them

Astrophysicists think that black hole masses are hierarchical. The largest are supermassive black holes (SMBH) like the one at the center of the Milky Way and other galaxies. Stell...

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space.com /3 weeks ago

Black holes slamming into scorching stars may be causing mysterious blue flashes in the cosmos

Powerful bright blue cosmic explosions called Luminous Fast Blue Optical Transients could be caused when a black hole or neutron star slams into the universe's hottest class of sta...

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phys.org /1 month ago

Could dark matter be made of black holes from a different universe?

New research suggests that relic black holes from before the big bang may still shape galaxies today. These black holes could explain dark matter, one of the biggest unsolved quest...

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universetoday.com /1 month ago

Exploding Primordial Black Holes Might Have Reshaped the Early Universe - And Created All Matter As We Know It

The early universe is absolutely so far outside our understanding of how the world works it's hard to describe in words. Back then, the cosmos wasn’t filled with stars and galaxies...

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