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.
Featured Image: the cosmic ice sculptures of the Carina Nebula via Hubblesite. The visible space is big, complex and can be incredibly beautiful. This list of 9 pictures gathers the most beautiful images of our universe I could find.
A nebula from Latin: "cloud"is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Originally, nebula was a name for any diffuse astronomical object, including galaxies beyond the Milky Way.
I used to want to be an astronomer and it is something that still really interests me. I love space and stars and galaxies and constellations. * it looks like roses in the spiral galaxy like the red bits