Black holes differ in mass and spin

Black holes are spinning faster than expected, researchers find
There's a universe full of black holes out there, spinning merrily away—some fast, others more slowly. A recent survey of supermassive black holes reveals that their spin rates reveal something about their formation history.
Feeding supermassive black holes are more common than thought across the universe
"If our eyes were able to detect X-rays, the sky would be full of dots. And every single one of those dots would be an accreting supermassive black hole."
New research suggests more supermassive black holes than we ever knew
Researchers have found there are many more black holes in the universe than once thought. (Credit: WikiMedia Commons) Most picture the night sky as an endless sea of twinkling stars. But if your eyes
Early Universe Black Hole Devoured Matter At Astonishing Rate
U.S. National Science Foundation NOIRLab astronomers, using data from the James Webb Space Telescope and the Chandra X-ray Observatory, have discovered an early universe supermassive black hole "consuming matter at a phenomenal rate — over 40 times the theoretical limit.
Black holes differ in mass and spin: May have formed in different ways
Gravitational wave observations have revolutionized our understanding of black holes, revealing crucial details about their masses and spins. These measurements, collected from binary black hole mergers,
Infrared telescopes discover hundreds of previously undetected supermassive black holes
Using IRAS and NuSTAR telescopes, scientists identify hundreds of obscured black holes hidden behind gas and dust.
Unprecedented View of a Supermassive Black Hole in Action
Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes, enormous amounts of energy are released, making active galactic nuclei, o
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Astronomers find hundreds of 'hidden' black holes — and there may be billions or even trillions more
Black holes that have been obscured by clouds of dust still emit infrared light, enabling astronomers to spot them for the ...
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Gravitational waves offer a 'cosmic DNA test' for black holes
The size and spin of black holes can reveal how and where they were born, and gravitational waves offer a way to decode this ...
Milky Way’s Black Hole Just Lit Up in a Way We’ve Never Seen Before
Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...
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James Webb telescope captures 1st 'mid-infrared' flare from Milky Way's supermassive black hole
The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...
USA Today7d
Mysterious flashing seen near supermassive black hole. Astronomers have an idea what it is
The black hole, with an official name of 1ES 1927+654, is located in the distant constellation Draco. Astronomers have been monitoring the black hole for years, primarily since 2018 when the mass ...
Mysterious Pulsing X-Rays From a Nearby Black Hole Baffle Astronomers
MIT astronomers have been captivated by the strange behaviors of a supermassive black located 270 million light-years away, ...
A strange black hole is acting even stranger
A strange black hole is making scientists scratch their heads.
Want to Get Sucked Into a Black Hole? Try This Book.
Marcus Chown’s “A Crack in Everything” is a journey through space and time with the people studying one of the most enigmatic objects in the universe.
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This Supermassive Black Hole May Harbor a Bizarre Star That Refuses to Die
Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...