The idea that alien life exists has gripped writers, artists, thinker, and scientists throughout history.This book explores many of the critical parts of astrobiology from theories about exoplanets and the formation of solar systems to places like the Lowell Observatory and Roswell and people like H.G. Wells and Carl Sagan. Astrobiology, or the search for aliens, has never been so accessible as in this text.With full-colour artwork and accessible main text and fact boxes, readers enjoy indulging in alien theories while also learning about science and history.