“Red Geyser” Galaxies Have Plenty of Star-Forming Gas But Don’t Form Stars
Astrobitica
January 30, 2026 (Last updated: January 30, 2026) 1 minute read
Red Geysers are an unusual class of galaxy that contain only old stars. Despite having plenty of star-forming gas, Red Geysers are quenched. Astronomers have mapped the flow of gas in these galaxies and figure out why they’re dormant.