4 ms·
Cf https://en.wikipedia.org/wiki/Scale_factor_%28cosmology%29 https://en.wikipedia.org/wiki/Scale_factor_%28cosmology%29 < 47k years: radiation-dominated era
by cygx 3y ago
Cf https://en.wikipedia.org/wiki/Scale_factor_%28cosmology%29 https://en.wikipedia.org/wiki/Scale_factor_%28cosmology%29
< 47k years: radiation-dominated era
< 9.8G years: matter-dominated era
> 9.8G years: dark-energy-dominated era