Astronomers using NASA’s Hubble Space Telescope, Chandra X-ray Observatory and ground-based optical telescopes have discovered what they say is the densest galaxy in the nearby Universe. The ultra-compact dwarf galaxy M60-UCD1 is located near a massive elliptical galaxy Messier 60. Image credit: X-ray – NASA / CXC / MSU / J.Strader et al; optical – NASA / STScI. The galaxy, dubbed M60-UCD1, is located near the elliptical galaxy Messier 60...
