Quasars

A magnificent black hole with an allocation disk and a cosmic hill of matter.

Supermassive black holes defy physics to become cosmic giants

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Researchers have linked X-ray emissions from 21 distant quasars to the rapid growth of supermassive black holes in the early universe
This image taken by Webb shows an ancient quasar (in the red circle) with fewer neighboring galaxies than expected. Credit: Christina Eilers/EIGER team

The Webb Space Telescope discovers quasars where they shouldn't exist

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Astronomers have used the Web to discover individual ancient quasars of uncertain origin
This image shows the region of the sky where the record-breaking quasar, J0529-4351, is located. Using the European Southern Observatory's Giant Telescope (VLT) in Chile, this quasar was found to be the most luminous object known in the universe so far. This image was created from images that are part of the Computerized Sky Survey 2, while the smaller image shows the location of the quasar in an image from the Dark Energy Survey. Credit: ESO/Computerized Sky Survey 2/Dark Energy Survey

The brightest object in the universe has been discovered - powered by a massive sun-swallowing black hole

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The material being pulled toward this disk-shaped black hole emits so much energy that J0529-4351 is more than 500 trillion times brighter than the Sun
Conceptual diagram of this study. Signals from supernovae (close-up lower right), quasars (close-up middle left), and gamma-ray bursts (close-up top center) reach Earth in the Milky Way galaxy (background), where we can use them to measure cosmological parameters. Credit: NAOJ

Rewriting the past and future of the universe - new research sheds light on the fate of our cosmos

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New research has improved the accuracy of the parameters that control the expansion of the universe. More precise parameters will help astronomers determine how the universe grew to its current state, and how it will evolve in the future.
An artist's impression of the formation of the quasar Pōniuā`ena, which began with a primordial black hole, 100 million years after the Big Bang. Illustration: International Gemini Observatory/NOIRLab/NSF/AURA/P. Marenfeld

A monstrous black hole with a billion solar masses has been discovered in the early universe

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Simulation of a jet of gas from material thrown into the black hole at the center of the galaxy 3C273 - which is an active quasar. Illustration: Courtesy of Prof. Hagi Netzer

How much does a supermassive black hole weigh?

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Quantum entanglement receives confirmation from distant quasars

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Imaging of the quasar J1342+0928, the active galactic halo that contains at its center a supermassive black hole, with a mass 800 million times that of our Sun, that is gobbling up a lot of material from a hot disk surrounding it. Source: Robin Dienel/Carnegie Institution for Science.

The most distant supermassive black hole to date has been discovered

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Comparison of sizes of different types of stars. From left to right: a red dwarf, with a mass of about 0.1 that of the Sun; "yellow dwarf", like our sun; A "blue dwarf" of about 8 solar masses; and the giant star R136a1, which has about 300 solar masses. Source: ESO/M. Kornmesser.

Brighter than the sun, hotter than the summer in Israel

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The quasar HE0435-1223 in the center of the wide-field image is among the five best purified quasars discovered so far. The intervening galaxy creates four uniform images of the distant quasar around the true quasar. Credit: ESA/Hubble, NASA, Suyu et al.

New research reveals that the early universe expanded much faster than today

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Quasars - ghost stars. Photo: Hubble Space Telescope/NASA

Blah-blah radio

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Researchers from the University of Oklahoma and China examined observations from the Hubble Space Telescope and discovered two massive black holes in the quasar Mercarian 231. Photo: Space Telescope Science Facility, Baltimore, Maryland.

For the first time, two huge black holes were discovered in the galaxy, and it is estimated that they will collide

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A rare hour. The earth slows down and so occasionally it is necessary to add a second to the year to coordinate the real time with the coordinated universe time set by an atomic clock. Photo: shutterstock

Why was June 30 a second long?

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ULAS J1120+0641 - the most distant quasar - its light reaches us as seen 770 million years after the Big Bang. Figure: ESO

The most distant quasar to date has been discovered

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The gravitational collapse and the black hole spewing jets of matter. Photo: the e-Merlin radio telescope array

A jet spitting out a black hole is seen in the first image of a new telescope array in the UK

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The array is spread over a large area within Great Britain and will function as one telescope, which improves its resolution
A quasar acts as a gravitational lens. Illustration: Caltech

Astronomers have discovered an unusual cosmic lens

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Galaxies collide. NASA illustration

Swift confirmed: super active black holes are those created by merging galaxies

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Quasars - very far away and terrifyingly powerful

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

An unexpected source of gamma rays has been discovered in space

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

For the first time, a pair of black holes was discovered, a phenomenon that was considered theoretical until now

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Stars are formed at an enormous speed in fresh galaxies

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The five quasars are figures of the same quasar - a rare photograph of the Hubble

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Spitzer revealed hidden, hungry black holes

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

More evidence supports the existence of dark energy

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Dark matter bends light from a distant quasar

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Israeli astrophysicists discovered for the first time Milky Way-like galaxies at the edge of the universe (update)

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Quasars - ghost stars. Photo: Hubble Space Telescope/NASA

The experiment challenging Einstein's theory

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

The largest stellar structure in the universe

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