Webb Space Telescope Rewrites the Rules of Galactic Evolution
Advanced observations by the JWST indicate that early galaxies matured faster and were less chaotic, challenging previous theories of galaxy evolution. New research has revealed…
Galaxy Evolution News
Galaxy evolution is the study of how galaxies form and change over the course of the universe’s history. This complex process is influenced by various factors including gravitational interactions, mergers with other galaxies, and the internal processes of star formation and supernovae. Initially, galaxies begin as fluctuations in the density of matter in the early universe, which then collapse under gravity to form stars and eventually galaxies. Over billions of years, these galaxies undergo significant transformations — they may grow through the accumulation of gas from the intergalactic medium or through mergers with other galaxies, leading to new bursts of star formation.
Dwarf Galaxies’ Big Secret: New Study Reveals How They Transform Into Ultra-Compact Dwarfs
A team of Chinese astronomers has successfully observed the full transformation of dwarf galaxies into ultra-compact dwarf galaxies (UCDs). This significant discovery was detailed in…
How Would Galaxies Form in a Universe Without Dark Matter? Researchers Find Out
A study by the University of Bonn simulates a universe in which Newton’s laws are only valid to a limited extent. For the first time,…
Cosmic Order Emerging From Chaos: Galactic Fountains and Carousels Unveiled
Scientists from Germany and the United States have unveiled the results of a newly-completed, state of the art simulation of the evolution of galaxies. TNG50…
Massive Galaxy Cluster Abell 959 Is 3,000 Times the Mass of Milky-Way
Most galaxies lie in clusters containing from a few to thousands of objects. Our Milky Way, for example, belongs to the Local Group, a cluster…
Physicists Identify Some of the Oldest Galaxies in the Universe
Physicists have discovered that some of the faintest satellite galaxies orbiting our own Milky Way galaxy are amongst the very first that formed in our…
Astronomers Discover New Way to Unlock the Mysteries of the First Galaxies
A team of astronomers has discovered a new way to unlock the mysteries of how the first galaxies formed and evolved. In a study published…
ALMA and APEX Discover Ancient Galaxy Megamerger
The ALMA and APEX telescopes have peered deep into space — back to the time when the Universe was one tenth of its current age…
New Fundamental Law Stipulates the Evolution of Galaxy Clusters
Analysis of gravitational lensing data by an international research team reveals that the evolution of galaxy clusters is dictated by a surprisingly simple law, which…
Hubble Telescope Discovers Ancient “Relic Galaxy” In Our Cosmic Backyard
Astronomers have put NASA’s Hubble Space Telescope on an Indiana Jones-type quest to uncover an ancient “relic galaxy” in our own cosmic backyard. The very…
Hubble Telescope Captures Spectacular Image of a Galactic Merger
Galaxies are not static islands of stars — they are dynamic and ever-changing, constantly on the move through the darkness of the Universe. Sometimes, as…
Astronomers See Evidence of Something Unexpected in the Universe
Astronomers have used NASA’s Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated…
New Simulation Shows What Happens When the Milky Way and Andromeda Galaxies Collide
Astronomers have discovered that our nearest big neighbor, the Andromeda galaxy, is roughly the same size as the Milky Way. It had been thought that…
Chandra Shows Supermassive Black Holes Are Outgrowing Their Galaxies
The biggest black holes in the Universe are growing faster than the rate of stars being formed in their galaxies, according to two new studies…
ALMA Reveals Rotating Dense Molecular Torus Around an Active Supermassive Black Hole
High-resolution observations with the Atacama Large Millimeter/submillimeter Array (ALMA) imaged a rotating dusty gas torus around an active supermassive black hole. The existence of such…
New Discovery Challenges Popular Theory About Dwarf Galaxies
A new international study involving The Australian National University (ANU) has found a plane of dwarf galaxies orbiting around Centaurus A in a discovery that…
Observations of Massive Galaxies in the Early Universe Reveal Rare Dark-Matter Haloes
The South Pole Telescope (SPT) is a 10-meter-diameter telescope in the Antarctic that has been operating at millimeter- and submillimeter-waves for a decade; the CfA…
Outer Halo of the Milky Way Contains Stellar Remains of Devoured Galaxies
An international team of astronomers led by Giuseppina Battaglia, researcher at the Instituto de Astrofísica de Canarias (IAC), finds signs that the outer halo of…