Devoted to discovering questions about the source and evolution of life in our Universe, this really interdisciplinary guide brings jointly a wide array of researchers. Thirty chapters assembled in 8 significant sections convey the information amassed and the richness of the discussions created by this difficult concept. The text explores the latest study on the conditions and procedures that led to the emergence of lifestyle on Earth and, by extension, maybe on other planetary bodies. Diverse resources of information are integrated, from astronomical and geophysical facts, to the purpose of drinking water, the origin of minimal life homes and the oldest traces of biological exercise on our planet. This text will not only appeal to graduate students but to the large human body of researchers fascinated in the difficulties offered by the source of life, its evolution, and its attainable existence beyond Earth.