This book explores the cutting edge of exoplanet discovery and the fundamental questions of planet formation and the potential for extraterrestrial life. Distinguished planetary scientist John S. Lewis synthesizes recent findings in the search for new planets, detailing theories of planet formation and the conditions necessary for life. The book examines the composition and formation of planets within our own solar system, using this knowledge as a basis for understanding distant worlds. Lewis discusses the evidence for exoplanets, including those with orbits closer to their stars than Mercury's to our Sun, and speculates on the types of planets and life that may exist beyond our solar system.

This book is regarded as a highly readable yet scientifically rigorous account of exoplanet research and planetary science. It is praised for its ability to explain complex astronomical concepts to a general audience, drawing on the author's expertise as a planetary scientist. The work effectively bridges our understanding of our own solar system with the ongoing search for worlds beyond.