Hubble, Euclid & Subaru uncover dark galaxy
Employing NASA/ESA Hubble Space Telescope in combination with ESA Euclid and ground-based NAOJ Subaru Telescope, astronomers identified a galaxy that appears to be almost entirely dominated by dark matter with only a smattering of stars. The galaxy, known as Candidate Dark Galaxy-2 (CDG-2), appears to contain just four globular star clusters (compared to the Milky Way’s 150-plus), and dimly shines with the light of only about 1 million Suns.
Published by ESA on 02/18/2026
