A vast grouping of billions of stars and associated cosmic phenomena bound together by gravity and orbiting a common centre. According to science, billions of galaxies thousands of light-years in diameter are scattered across the universe, with pretty well nothing much occupying the vast space between them (unless of course you count the so-called "dark matter" postulated by the latest cosmological theories). Almost all of the visible stars in the night sky, including our own Solar System, are part of the Milky Way Galaxy. Most galaxies external to our own require a telescope to see clearly. Notable exceptions are the Large and Small Magellanic Clouds and the Andromeda Galaxy, which are visible to the naked eye. Galaxies as such have no astrological significance, though esoteric teachings hold that they are each a "body" of a divine being.