Changes

The Big Bang is a theory that the Universe expanded outwards from a very hot, dense state approximately 14 billion years ago; an expansion which continues today.  It is the most popular theory about the origin of the Universe, widely accepted in the scientific community.  It was first proposed by [[Georges-Henri Lemaitre]].  More evidence for the Big Bang was found by [[Edwin Hubble]]. Later [[George Gamow]] predicted that the Big Bang would leave an observable microwave background radiation. This radiation was subsequently discovered by [[Bell Labs]] and found to be close to that predicted by Gamow (Gamow predicted a background radiation level equivalent to a 3 K black body object, and the observed level is that of a 2.725 K body).

The Big Bang is a theory that the Universe expanded outwards from a very hot, dense state approximately 14 billion years ago; an expansion which continues today.  It is the most popular theory about the origin of the Universe, widely accepted in the scientific community.  It was first proposed by [[Georges-Henri Lemaitre]].  More evidence for the Big Bang was found by [[Edwin Hubble]]. Later [[George Gamow]] predicted that the Big Bang would leave an observable microwave background radiation. This radiation was subsequently discovered by [[Bell Labs]] and found to be close to that predicted by Gamow (Gamow predicted a background radiation level equivalent to a 3 K black body object, and the observed level is that of a 2.725 K body).