Alexander Vilenkin - Did Our Universe Have a Beginning?
11:12
Alexander Vilenkin - How Did Our Universe Begin?
10:51
George Smoot III - Did Our Universe Have a Beginning?
8:56
Alexander Vilenkin - Does the Cosmos Have a Reason?
10:49
Alexander Vilenkin - Is the Universe Fine-Tuned for Life and Mind?
8:00
Alan Guth - Did Our Universe Have A Beginning?
14:53
Saul Perlmutter - Why Did Our Universe Begin?
10:03
Leonard Mlodinow - Did the Universe Begin?
7:59