Science ❯ Astronomy ❯ Galaxies

Galaxy Mergers

Milky Way Quasars Infinity Galaxy MCG-03-34-64 Star Formation Supermassive Black Holes Supermassive Black Hole Mergers Stellar Collisions Elliptical Galaxies NGC5713 and NGC5719 IC 2163 and NGC 2207 Gravitational Wave Background Black Holes Ancient Galaxy Discoveries OJ 287 Abell 402-BCG Arp 122 Andromeda Galaxy Fossil Galaxies Supermassive Black Hole Merger Milky Way Mergers Machine Learning Binary Supermassive Black Holes Arp 107 Supermassive Black Hole Binaries Triple Galaxy Mergers Host Galaxy Properties Gravitational Lensing Black Hole Formation Markarian 501 Milky Way and Andromeda Colliding Galaxies Perseus Cluster Early Universe Active Galactic Nuclei Black Hole Growth Andromeda and Milky Way Merger Arp 105 NGC 2207 and IC 2163

JWST Pixel Analysis Reveals Four Close Little Red Dot Pairs Pointing to Early Black‑Hole Clustering

Targeted spectroscopy, X‑ray and radio observations will test whether the pairs are merging accreting black holes.

Simulations Suggest Milky Way Disk Flipped After Ancient 'Gaia Sausage' Collision

Study Points to Tight Supermassive Black Hole Binary in Markarian 501

Magnetar ‘Chirp’ Identified in Superluminous Supernova as Short GRB Localized to Tidal-Stream Dwarf

JWST Finds Compact Five-Galaxy Merger From 800 Million Years After the Big Bang

Astronomers Confirm First Triple Radio AGN in Merging Galaxy Trio

Record-Setting Day-Long GRB 250702B Confirmed at z = 1.036 as Origin Remains Unsettled

Coherent Satellite Planes Around NGC5713/19 Offer Window into Milky Way–Andromeda Merger

Infinity Galaxy’s Newborn Black Hole Shows Evidence of Direct Collapse

Astronomers Capture First Direct Evidence of Quasar Radiation Disrupting Neighboring Galaxy