Redshift of distant galaxies, attributed to the Doppler effect; and cosmic background radiation which agrees with certain predictions of the big bang model. I suggest you read the Wikipedia article on the Big Bang for more details.
1) Astronomer Edwin Hubble discovered that most celestial objects were moving away from each other, due to the red-shift of the light coming from them. This means that if you go back in time, all...
The big bang theory is that our Universe began with an expansion of space (NOT an explosion of matter into space) that continues to this day at a rate that has remained fairly constant over the last...
The most commonly cited evidence is the metric expansion of space. It is inferred from Hubble's law that the Universe is expanding faster and faster with time, due in roughly equal proportions to the...
we are the evidence of the big bang and everything you see. The evidence that the space that constites our Universe has been expanding since about 13.7 billion years ago is overwhelming. 1) all...