What groups support and don support the big bang theory? What is the big bang theory?
Sorry, I don’t know about the groups. The Big Bang is the model (description) of the universe that is best supported by all cosmological observations. The essential idea is that the universe has expanded from a primordial hot and dense initial condition and continues to expand to this day. Since the universe is seen to be expanding today, theoretical cosmologists can make detailed predictions of the universe’s denser and hotter past. The results of Big Bang predictions have been found to conform accurately and precisely to a variety of astronomical observations. Extrapolation of the expansion of the universe backwards in time yields an infinite density and temperature at a finite time in the past. This singularity signals the breakdown of general relativity. Evidence does not show the cause of the Big Bang or give information on conditions previous to it. Rather than repeatedly reciting this qualifying sentence, the Big Bang is often simply referred to as the beginning or “creation” of
