what evidence is there that supports the big bang theory?

Question: what evidence is there that supports the big bang theory?
- Keywords:
  Big Bang,
  theory
Asked by jump45day to Souvik, Sabine, Maria, Armin on 21 Nov 2019. This question was also asked by Darlo_theLej.
- Maria McNamara answered on 21 Nov 2019:
  
  Redshift of light from distant stars and galaxies – meaning they are moving away from us, i.e. the universe is still expanding.
  
  Ripples in the distribution of matter in interstellar space.

Question: what evidence is there that supports the big bang theory?