Dennis Danielson is a professor of English at the University of British Columbia in Vancouver, BC. He has served as a member of the History-of-Astonomy Committee for the Adler Planetarium and Astronomy Museum in Chicago, and is a member of the Historical Astronomy division of the American Astronomical Society. His articles have appeared in the American Journal of Physics and the Journal for the History of Astronomy. He is the editor of the acclaimed anthology of cosmological writings, "The Book of the Cosmos," He lives in Vancouver, BC.