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.” I must say, this is one of the best lectures I have watched in a while, the part about the nothing (empty space) making up 90% of an atom’s mass is just an exciting notion of what we still don’t know.

HD Video: http://www.youtube.com/watch?v=7ImvlS8PLIo