The Cosmic Dark Ages - YouTube - PBS Space Time - astrophysics/cosmology

Dr.Matt O'Dowd is an Australian astrophysicist who presented and wrote this episode of PBS Space Time.Recombination:In the blazing heat of the Big Bang,atoms were stripped of their electrons.This was gradually reversed in the reionisation era.The first light was the Cosmic Microwave Backgoround (CMB).The first stars were formed about 150 million years after the Big Bang.Before that were the Cosmic Dark Ages.*Cosmology is the study of the origin,evolution and structures of the universe.