Astronomers have discovered the largest known structure in the universe, a 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.
Feeling totally relaxed she closed her eyes. Strange images and shapes danced in her head to the sound of the waterfall. Shades of purple came and went behind her closed eyes. She felt strangely calm, almost like she was floating. Excerpt from THE COLOUR OF LOVE More