A Primordial Quasar - The nearest quasars are now known to be supermassive black holes in the centers of galaxies. Gas and dust that falls toward a quasar glows brightly, sometimes outglowing the entire home galaxy.
NASA's Hubble Space Telescope imagery: The Cat's Eye Nebula, one of the first planetary nebulae discovered, also has one of the most complex forms known to this kind of nebula. Eleven rings, or shells, of gas make up the Cat's Eye.
A giant bubble blown by the massive Wolf-Rayet star HD the pink star in the centre of the image. X-ray data from XMM-Newton’s EPIC camera are shown in blue, while optical images are shown in red and green
Kelper’s Supernova, the structure remaining after the cataclysmic explosion of a star. The supernova is named after Johannes Kepler who observed the star’s explosion in October which at the time was brighter than any other star or planet in the sky.