David Devorkin is curator for history and astronomy and the space sciences at the Smithsonian National Air and Space Museum. In his more than 30-year career, he has written over 90 articles and seven books. He lives in Maryland.
Robert Smith is professor of history and past chair of the Department of History and Classics at the University of Alberta, and formerly a staff member at the National Air and Space Museum. His books include the award-winning The Space Telescope: A Study of NASA, Science, Technology and Politics. He has closely followed Hubble's history for 20 years.