Hubble finds phantom objects near dead quasars

Hubble finds phantom objects near dead quasars

NASA's Hubble Space Telescope has photographed a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded. Astronomers have found knots of dust and gas in "greenish blobs" in nine galaxies with bright active nuclei. The eerie structures have looping, spiral, and braided shapes. Hubble's images show that they are like the remnants of galaxy collisions [Credit:... [[ This is a content summary only. Visit my website for full links, other content, and more! ]]