185 moons in our solar system! Earth has only one.
Beautiful and intricately detailed summation of the last 400 years of moon discoveries beginning with Galileo and up to the NASA Cassini project. This book is packed with information about our moons. Of the 185 moons, Earth has only one but Venus and Mercury each have zero moons. Most of the 185 moons in our solar system orbit the gas giants such as Jupiter and Saturn.
I learned more from Mr. Hamilton's book than I did in my own undergraduate Astronomy classes. I was not lucky enough to attend the college at which he taught Astronomy. Though this and many of Mr. Hamilton's books are nonfiction he is also an accomplished writer of Science Fiction and Fantasy.