The universe was supposed to be all there was - the whole of existence. For centuries the size
of the universe and whether or not it is finite fascinated scientists and philosophers. But
however big the universe may be there being only one gave astronomers and cosmologists a
headache. Existence as we know it is contingent on so many constants in nature which if
altered only slightly would make life impossible. This seems so unlikely to happen by chance.
What if instead there is in fact a vast range of different universes with many variants of
the universal contents making ours just one of many that happens to be viable for life? In
this illuminating exploration Brian Clegg delves into the endless possibilities of the
multiverse. Investigating questions of expanding parallel and communicating universes this
accessible guide takes the reader into one of the weirdest and most exciting areas of modern
physics and cosmology.
