vivid nebula swirls, cosmic dust, distant starlight , nebular, ultraviolet

nebular ultraviolet emission nebula glow milky way hii region interstellar medium stellar light years irregular galaxy stars molecular cloud planetary cosmos elliptical cosmic rays infrared celestial space star cluster spiral blue outer astronomical astrophotography dark nursery night sky purple red reflection background orange deep matter universe exploration dust color supernova remnant astronomy vivid swirls distant starlight