Lawrence Krauss on a Universe From Nothing
Richard Dawkins Foundation for Reason & Science · Lecture · YouTube title: 'A Universe From Nothing' by Lawrence Krauss, AAI 2009
Why it's here
HN regards it as a famous, mesmerizing talk, especially for the point that distant galaxies will become unobservable.
What it covers
Lawrence Krauss's 2009 talk on the current picture of the universe, how it will end and how it could have come from nothing. It covers the expanding universe, cosmic background radiation and the cosmological constant.