This false-color composite image provided by NASA hows the Cartwheel galaxy as seen by the Galaxy Evolution Explorer's Far Ultraviolet detector (blue); the Hubble Space Telescope t (green); the Spitzer Space Telescope (red); and the Chandra (purple).
/ NGC Trifid Nebula in Sagittarius. Its name means 'divided into 3 lobes.' The object is an unusual combination of an open cluster of stars; an emission nebula; a reflection nebula & a dark nebula about 5200 light years away.
Clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes.