Thor's Helmet: this object, also known as NGC lies in the constellation of Canis Major (The Great Dog). The helmet-shaped nebula is around 15 000 light-years away from Earth and is over 30 light-years across.
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.
Cassiopeia -- New Photo Reveals ‘Ghostly’ Green Nebula in Deep Space An amazing new photo from a telescope in Chile has captured the most detailed view yet of a green glowing blob light-years away from Earth. Credit: ESO The new image, released toda
Photo: Resembling the puffs of smoke and sparks from a summer fireworks display in this image from NASA ESA Hubble Space Telescope, these delicate filaments are actually sheets of debris from a stellar explosion in a neighboring galaxy.