Designed for high school through early college students, A to Z of Scientists in Space and Astronomy is an ideal reference to notable male and female scientists in the field of space and astronomy, from antiquity to the present. Containing more than 160 entries and 50 black-and-white photographs, the authors emphasize the scientists' contributions to the field as well as his or her effect on scientists who have followed. The book is organized with a general introduction that explains who is in the book and why; a list of entries; the entries themselves; indexes by field of specialization, nationality, subject area, and chronology; a bibliography; and an index.