RON MILLER is an artist and author who specializes in writing and
illustrating books on astronomy, astronautics, and science fiction. He has served on the faculty at the International Space University, as contributing editor for Air & Space/Smithsonian magazine, and as art director for the Smithsonian's National Air and Space Museum's Albert Einstein Planetarium. MATTHEW SHINDELL is curator of planetary science and exploration at the Smithsonian's National Air and Space Museum. MARGARET A. WEITEKAMP is curator and department chair of the Space History department at the Smithsonian's National Air and Space Museum.