Science ❯ Astronomy ❯ Galaxies

Galaxy Mergers

Supermassive Black Holes Supermassive Black Hole Mergers Infinity Galaxy MCG-03-34-64 Quasars NGC 2207 and IC 2163 IC 2163 and NGC 2207 Black Hole Formation Gravitational Wave Background Andromeda and Milky Way Merger Arp 105 Star Formation Arp 122 Milky Way Andromeda Galaxy Elliptical Galaxies Fossil Galaxies Machine Learning Ancient Galaxy Discoveries Milky Way and Andromeda NGC5713 and NGC5719 Host Galaxy Properties Perseus Cluster OJ 287 Black Holes Active Galactic Nuclei Colliding Galaxies Arp 107

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

JWST pins the distance at z = 1.036, leaving an extreme energy budget that no single progenitor model yet accounts for.