We live in a truly golden age of astronomy and space exploration that may allow us to unravel some of the biggest mysteries of all: How did the Universe begin? Are there other Earth-like planets out there? Are we alone? The Space Book is a gateway into these kinds of questions-and more-for anyone interested in the worlds beyond our planet. Expanding the series that began with the highly successful volume The Math Book, astronomer and planetary scientist Jim Bell presents 250 of the most groundbreaking astronomical events, from the formation of galaxies to the recent discovery of water ice on Mars. Beautiful photographs or illustrations accompany each entry. Open the book to any page to discover some new wonder or mystery about the Universe around us.