Lawrence Krauss gives a talk on our current picture of the universe, how it will end, and how it could have come from nothing. Krauss is the author of many bestselling books on Physics and Cosmology, including "The Physics of Star Trek."
2014
1993
2007
2017
1976
2012
2004
2000
2022
2003
2016
2009
1968
2008
2013