Colin R. Nicholl (PhD, University of Cambridge) taught at the University of Cambridge and was a professor of New Testament at Gordon-Conwell Theological Seminary before devoting himself to biblical research. His book From Hope to Despair in Thessalonica was published by Cambridge University Press, and his articles have appeared in publications such as The Journal of Theological Studies and The Times (London). Gary W. Kronk is a consultant of the American Meteor Society, the author of Cometography, and the webmaster of cometography.com and meteorshowersonline.com.