merging galaxies

This figure shows a stage in the merger of two galaxies that creates a single galaxy with two supermassive black holes at the center and surrounded by disks of hot gas. The black holes orbit each other for hundreds of millions of years as they merge to form a single supermassive black hole that sends out powerful gravitational waves. Credit: NASA/CXC/A.Hobart

Gravitational waves hint that the universe still has secrets

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New research sheds light on the origin of low-frequency ripples in space-time
Simulation of a smooth halo of stars around the Milky Way. Figure: ESA

Gaia: The Milky Way's last major collision happened surprisingly recently

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Perseus galaxy cluster. The image, taken by the Euclid satellite, shows the Perseus galaxy cluster illuminated by the soft blue light emitted by orphan stars. These stars are scattered throughout the cluster, and reach a distance of 2 million light years from its center. The cluster galaxies stand out in illuminated elliptical shapes against the dark space. Credit: ESA/Euclid/Euclid Consortium/NASA, Image processing: M. Montes (IAC) and J.-C. Cuillandre (CEA Paris-Saclay).

The Euclid mission reveals 1.5 trillion orphan stars cruising through space

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The Perseus cluster is among the most massive structures in the universe, containing thousands of galaxies and located about 240 million light years from Earth. Within this vast expanse, the Euclid satellite detected faint and ghostly lights - the orphan stars
Artificial intelligence reveals a long-standing mistake in the study of black holes. Credit: The Science website via DALEE

Artificial intelligence reveals a long-standing mistake in the study of black holes

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A new study, led by the UK's University of Bath, has found that supermassive black holes need both merging galaxies and cold gas to grow. This discovery, obtained through machine learning, may change our understanding of
Artist's rendering of the heaviest pair of supermassive black holes: Using archival data from the Gemini North Telescope, a team of astronomers has measured the heaviest pair of supermassive black holes ever found. The merger of two supermassive black holes is a long-predicted but never-observed phenomenon. This pair provides insight into why such an event seems so unlikely in the universe. Credit: NOIR LAB

Astronomers have measured the heaviest pair of black holes ever found

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Data from the Gemini North Telescope provide a possible explanation for the halting of the merger of a pair of supermassive black holes at the center of a galaxy
In this image, the complex dust lanes of the galaxy are a spectacular sight. NGC 4753 is about 60 million light years away in the constellation Virgo. Photo by ESO's Gemini South Telescope in Chile

Gemini South Observatory images NGC 4753's spiral dust disk, the result of a galaxy merger

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NGC 4753 was discovered in 1784 by astronomer William Herschel and has some fascinating features. In this image, the complex dust lanes of the galaxy are a spectacular sight. NGC 4753 is about 60
This image, showing an elliptical galaxy (left) and a spiral galaxy (right) includes nearby AA light from the James Webb Space Telescope and UV light seen from the Hubble Space Telescope. Credit: NASA, ESA, CSA, Rogier Windhorst (ASU), William Keel ( University of Alabama), Stuart Wyithe (University of Melbourne), JWST PEARLS Team, Alyssa Pagan (STScI)

Explanation of a strange cosmic phenomenon: astrophysicists discovered why there are no spiral galaxies in our supergalactic plane

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Astrophysicists have discovered why spiral galaxies like our Milky Way are rare in the supergalactic plane, a dense region of our local universe
The galaxy CGCG 396-2 in the Hubble image. Credit: ESA/Hubble & NASA, W. Keel

Hubble discovers a galactic gem: an unusual merger of a multi-armed galaxy

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Citizen scientists have classified lexicons to help scientists solve an astronomical-scale problem -- how to sort through the vast amounts of information generated by robotic telescopes
Magellanic clouds. Photo: Andrew Lockwood for the Australian National University

The pair of Magellanic Clouds were once a trio

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Some of the thousands of merging galaxies identified in the Gamma Survey. Photo: Simon Driver and Aron Robotham, ICRAR.

Monster galaxies gain mass by accreting their smaller neighbors

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The dwarf galaxy NGC 4449, engulfs a stream of stars. Photo: Subaru Telescope, Hawaii

Even small galaxies swallow other galaxies

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The Rose Galaxy - from the pair ARP 273

Hubble celebrates 21 with the rose of the galaxies

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The Antenna Galaxies: Combined Hubble, Spitzer, and Chandra Space Telescope Images, August 2010. Photo: NASA

Spectacular collision of galaxies

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A galaxy collision restarts a black hole

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

Spitzer photographed the Big Eye galaxy

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

Hundreds of "rogue" black holes wander the Milky Way and swallow everything in their path

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

Astrophysicists at the Hebrew University formulated a new understanding of the formation of galaxies in the universe

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

Researchers from the Hebrew University have developed a revolutionary model to explain the formation of galaxies

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

Hubble captured a galaxy as it formed

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

Massive galaxies collide. Will this also be the end of the Milky Way?

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

Hubble watched a cannibalistic galaxy

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

The merging dance of the galaxies

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