Why not other theories besides the Big Bang?
There are some astronomers and scientists who do not believe the Big Bang is correct. Other theories have been proposed, including:
- Oscillating Universe: the Universe expands and contracts regularly on an infinite basis. This is sometimes called the Big Bounce in deference to the Big Bang.
- Steady State/Quasi-Steady State: the Universe is as it was and as it will always be… basically no changes. As matter disappears, more matter is ‘created’ to take its place.
- Modification Of Newtonian Dynamics (MOND) . Newton’s laws have changed over the life of the Universe.
- Tired Light: Light loses energy.
These theories and several others similar to these are supported by a very small minority of astronomers. Mostly you will see arguments against the Big Bang and in support of one of these theories.