Lawrence Krauss
Lawrence Maxwell Krauss (born May 27, 1954) is a Canadian-American theoretical physicist who is a professor of physics, Foundation Professor of the School of Earth and Space Exploration, and director of the Origins Project at Arizona State University. He is the author of several bestselling books, including The Physics of Star Trek and A Universe from Nothing. He is an advocate of scientific skepticism, science education, and the science of morality.
Working mostly in theoretical (as opposed to experimental) physics, he has published research on a great variety of topics within that field. His primary contribution is to cosmology, as he was one of the first physicists to suggest that most of the mass and energy of the universe resides in empty space, an idea now widely known as dark energy.