Universe or universes (The Universe) is vast, the edge and the center does not. If anyone thought that the center or the edges where the universe. Know what they're doing illegality of the universe.
Because the rules are central to the universe ... a universe. Border or not It was a problem with the definition by so many. The cosmology is that the universe is not going anywhere. It will study the behavior of the universe over.
A universe of galaxies contain huge numbers. And the space between galaxies are much more. Universe aged 14 ± 3 Aerons or Gigayears (Giga = 109) This value is still called "The Hubble constant" is in honor of Edwin Hubble (1890-1953), American astronomer. Who can measure the length of our galaxy.
The universe contains galaxies thousands of millions of galaxies. Much could not be said that there are many stars in the sky. It is part of the universe or cosmos. The stars are together in a group called "galaxy" galaxy, or the world as one of the stars of our galaxy. Or as we call it Milky Way galaxy