Most Popular Books
- The Three Galileos: The Man, The Spacecraft, The Telescope (Astrophysics and Space Science Library)
- Earth-Moon Relationships: Proceedings of the Conference held in Padova, Italy at the Accademia Galileiana di Scienze Lettere ed Arti, November 8-10, 2000
- A Brief Introduction to the Search for Extra-Terrestrial Life
- Fundamentals of Astronomy
