Anna Frebel: Origin and Evolution of the Universe, Galaxies, and Stars | Lex Fridman Podcast #378
Lex Fridman
Anna Frebel, an astrophysicist at MIT, explains how studying ancient stars allows scientists to reconstruct the chemical and physical conditions of the early universe following the Big Bang. Initially composed almost entirely of hydrogen, helium, and trace amounts of lithium, the primordial gas was …