The most luminous galaxy ever discovered is cannibalizing not one, not two, but at least three smaller galaxies, which could explain its extreme brightness.
Smallest, faintest galaxies of the ancient universe spotted
Most Luminous Galaxy is Eating Its Neighbors (Artist's Impression)
Olympus SLR Talk
Orbiter.ch Space News: 2018-11-11
Hubble Sights a Galaxy with 'Forbidden' Light - Technology Org
The Most Luminous Galaxy Is Eating Its Neighbors
Qual è la galassia più strana? - Quora
Most Luminous Galaxy is Eating Its Neighbors (Artist's Impression)
The Most Luminous Galaxy Is Eating Its Neighbors - SpaceRef
APOD: The Milky Way's Black Hole (2022 May 13) - Starship Asterisk*
Orbiter.ch Space News: 2018-11-11
News – Instituto de Estudios Astrofísicos UDP