Ira Flatow is an award-winning radio and television journalist, who has been interviewing top scientists and researchers for over thirty-five years. He is the host of National Public Radio’s Science Friday and is the author of several acclaimed science books.

Helge Kragh is a leading science historian whose research focuses on the history of cosmology. He is the author of several books including, Cosmology and Controversy and Conceptions of the Cosmos. Kragh is a professor in the History of Science Department at the University of Aarhus in Denmark.

Lawrence Krauss is a theoretical physicist and best-selling author whose research focuses on the origin and evolution of the universe. He has written several general level science books, including The Physics of Star Trek, and is a frequent editorialist in magazines and newspapers. Krauss is the Ambrose Swasey Professor of Physics at Case Western Reserve University.

Physicist Lyman Page measures and observes cosmic radiation left over from the Big Bang to better understand the very early universe and how it has since evolved. He is the Henry DeWolf Smyth Professor of Physics at Princeton University.

Paul Steinhardt is a theoretical physicist and one of the architects of the “inflationary model” which says the universe began a rapid, accelerated expansion shortly after the Big Bang. He is the Albert Einstein Professor of Science and professor of theoretical physics at Princeton University.