3 ore 13 min, 1 gen 0 anni - Lepton Epoch, from 1 second to 3 minutes
Descrizione:
After the majority (but not all) of hadrons and anti hadrons annihilate each other at the end of the Hadron Epoch, leptons (such as electrons) and antileptons (such as positrons) dominate the mass of the universe. As electrons and positrons collide and annihilate each other, energy in the form of photons.
Aggiunto al nastro di tempo:
Data:
3 ore 13 min, 1 gen 0 anni
Adesso
~ 2025 years ago