In this lecture, John Felvinci explores the Big Bang theory, which is supposed to have started our Universe. Of late, new theories and interpretations have emerged. Some have put the date back by many billions of years; others are delaying the birth by having inflation precede it. Many new measurements by the Webb telescope, and other new ideas about dark matter indicate a a need for revision. Zoom class—you can enjoy it in the comfort of your home or in the company of others at KSC