Big Bang Nucleosynthesis · First 3 Minutes
unseel.com · D, ³He, ⁴He, ⁷Li · η = 6×10⁻¹⁰
t 0 s
T 10¹² K
phase
Proton
Neutron
Deuterium · ⁴He
Photon · e⁻
Unseel.com · Big Bang Nucleosynthesis