Evolution of galaxies

The Small Magellanic Cloud (SMC) is a nearby dwarf galaxy and one of the Milky Way's closest neighbors. Credit: NASA, ESA, CXC, and the University of Potsdam, JPL-Caltech, and STScI

Collision between Magellanic Clouds may explain dwarf galaxy's unusual motion

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New research suggests that the Small Magellanic Cloud passed through the disk of the Large Magellanic Cloud several hundred million years ago. The collision disrupted the motion of stars and gas, and may require a reexamination of
An illustration illustrating the rotation of neutral hydrogen (right) in galaxies located in an elongated galaxy (middle), with the galaxies showing a coherent overall rotational motion that follows the large-scale cosmic fabric (left).

One of the largest rotating structures ever seen: a giant cosmic filament where galaxies spin “in the same direction”

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A model of accretion on a disc-shaped galaxy. Color represents the temperature of the gas, and the black lines the flow lines of the gas, when it flows from the hot galactic surrounding medium (about a million degrees) to the galaxy where the gas is relatively cold (about 10,000 degrees). The right panel shows three streamlines in 170D, which highlight the swirling of the gas during the inflow. The top image is a Hubble Space Telescope image of a relatively nearby disk galaxy. Its diameter is about 21 thousand light years, and its distance from us is about XNUMX million light years.

on galactic dynamics

What can be learned from the shape of galaxies about the complex connections between different materials in the universe
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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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
Webb and Hubble Space Telescope composite image of the RX J2129 galaxy cluster, with three images of the 9.51 redshift galaxy circled in green. From the scientific article

Ancient compact galaxy with high star formation rate discovered by Webb Space Telescope

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The redshift of this galaxy reaches 9.51 meaning that it was seen when the age of the universe was only 550 million years old. The rate of star formation in it is 10 times greater than the Milky Way
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