The story
purple + grape + galaxy. From being a round galaxy dominated by purplish hue.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A type of galaxy, a dwarf galaxy undergoing starburst dominated by purpley light with low metallicity, located at high redshift. A high-redshift green pea galaxy, whose light has been redshifted out of the green specturm, of the archetypal discoveries. Full definition →
purple + grape + galaxy. From being a round galaxy dominated by purplish hue.
Etymology from Wiktionary, CC BY-SA 4.0.