Katherine Freese is the George E. Uhlenbeck Professor of Physics at the University of Michigan and Visiting Professor of Physics at Stockholm University. She works on a wide range of topics in theoretical cosmology and astroparticle physics. She has been working to identify the dark matter and dark energy that permeate the universe, as well as to build a successful model for the early universe immediately after the Big Bang. She is author of a book The Cosmic Cocktail: Three Parts Dark Matter, published by Princeton University Press. Dr. Freese’s work has been described in The New York Times, BBC, Scientific American, New Scientist, National Public Radio, Boston Globe, Dallas Morning News, and other media. Her public appearances include Through the Wormhole with Morgan Freeman, a BBC Horizon Dark Matter documentary, a New York Academy of Sciences Panel, TV Ontario, and the Isaac Asimov Debate at the American Museum of Natural History in New York.