The Big Bang?


The Big Bang Theory is currently the best theory describing the origin of the universe. Evidence to support it includes the Cosmic Microwave Background Radiation (relic radiation leftover from the Big Bang some 12-15 billion years ago, first mapped by the COBE satellite in 1992, to be mapped in greater detail by the MAP satellite over the next few years) and the fact that the universe is expanding (as observed by Edwin Hubble in 1929). 

Overviews

Articles
 

Research Efforts

Theories (Advanced)