Lawrence M. Krauss is an American Theoretical Physicist who is Professor of Physics, Foundation Professor of the School of Earth and Space Exploration and Director of the Origins Project at the Arizona State University. He is the author of several bestselling books, including The Physics of Star Trek.
http://99faces.tv/ met him at the World Economic Forum WEF) in Davos in January 2011. Eli de los Pinos, herself a great scientist, interviewed him about his research focus: the beginning and end of the Universe.
More info: http://99faces.tv/lawrencemkrauss/