Simon Mitton is an Affiliated Research Scholar in the Department of the History and Philosophy of Science, Cambridge. His main field of interest is the history of astronomy in the 20th century. He has a book in press with Princeton University Press on the origin of structure in the universe and is currently writing a biographical history of astronomy for Cambridge University Press. He gives talks on the history of astronomy for cruise lines (e.g. Cunard), literary festivals (Hay-on-Wye), and astronomical societies (Society for Popular Astronomy). He is the Editor of the International Journal of Astrobiology.