The best thing about writing a book on the A to Z of Scientists in Space and Astronomy is discovering that many of the most amazing contributions were made by ordinary people who loved gazing at the stars. Musicians, philosophers, priests, physicians, people who came from impoverished backgrounds, and those with untold wealth, have all contributed to our understanding of what we see when we look into the night sky, and where we fit into the scheme of things. Astronomy, unlike any other field, can be and has been significantly affected by amateurs. The stars are for everyone