The term galaxy is derived from the Greek galaxias? Alpha? ), referring to the milky way, it is a mass system containing stars, interstellar matter, cosmic dust and dark matter, and bound by gravity. A typical galaxy, from the dwarf star of only tens of millions of stars to the elliptical galaxies of trillion stars, all revolves around the mass center. In addition to individual stars and thin interstellar matter, most galaxies have large number of many stars systems, clusters, and different nebulae.
Glass material Color Mobile phone theme Wallpaper Cool
Boutique theme Personality theme
9Apps 4.9
