jul 4, 2399952 - Photon Epoch, from 3 minutes to 240,000 years
Description:
During this long period of gradual cooling, the universe is filled with atomic nuclei and electrons. The energy of the universe is dominated by photons, which continue to interact frequently with the charged protons, electrons and nuclei.Added to timeline:
Date:
jul 4, 2399952
Now
~ 2399519 years later