Lawrence M. Krauss is Ambrose Swasey Professor of Physics and Professor of Astronomy and Chairman of the Department of Physics at Case Western Reserve University. He is also the author of two acclaimed books, Fear of Physics: A Guide for the Perplexed and The Fifth Essence: The Search far Dark Matter in the Universe, and over 120 scientific articles. He is the recipient of several international awards for his work, including the Presidential Investigator Award, given by President Reagan in 1986. He lectures extensively to both lay and professional audiences and frequently appears on radio and