Why are we here?

Lawrence Krauss is the author of the new book The Greatest Story Ever Told--So Far: Why are we here?.  Lawrence is a renowned theoretical physicist, is director of the Origins Project at Arizona State University. He is the author of more than 300 scientific publications and nine books, including the international bestsellers, A Universe from Nothing and The Physics of Star Trek. The recipient of numerous awards, Krauss is a regular columnist for newspapers and magazines, including The New Yorker, and he appears frequently on radio, television, and in feature films.