Redshift factor, Absolute redshift, Galaxies red / blue distribution

Big Bang theory is the prevailing theory of the origin of the universe and its development. Its main argument is so-called "galaxies escape". The analysis of the light from galaxies shows that the spectral lines are shifted to the red part of the spectrum. Based on the Doppler effect interpret this to mean that "most" of galaxies receding from the observer. They believe that back in time, galaxies...