The two (2) pieces of evidence that support the Big Bang Theory are: 1. red shift of light and cosmic background radiation.
The Big Bang Theory can be defined as an explanation by astronomers to describe how the universe was formed or started. These group of astronomers posited and argued that the whole universe stretched from a single point and then expanded to the way or manner it is right now.
Basically, Georges Lemaître was the astronomer that stated the Big Bang Theory and some of the principles of the Big Bang Theory include;
According to the Big Bang Theory, cosmic background radiation is typically a radiation that permeates our universe (space). Also, a red shift of light is a phenomenon which describes how light changes as physical objects in space move across the universe.
In conclusion, the two (2) pieces of evidence that support the Big Bang Theory are:
1. Red shift of light.
2. Cosmic background radiation.
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