A guide to understanding the formation of life in the Universe The revised and updated second edition of Astrobiology offers an introductory text that explores the structure of living things, the formation of the elements required for life in the Universe, the biological and geological history of the Earth, and the habitability of other planets. Written by a noted expert on the topic, the book examines many of the major conceptual foundations in astrobiology, which cover a diversity of traditional fields including chemistry, biology, geosciences, physics, and astronomy. The book explores many profound questions such as: How did life originate on Earth? How has life persisted on Earth for over three billion years? Is there life elsewhere in the Universe? What is the future of life on Earth? Astrobiology is centered on investigating the past and future of life on Earth by looking beyond Earth to get the answers. Astrobiology links the diverse scientific fields needed to understand life on our own planet and, potentially, life beyond. This new second edition: Expands on information about the nature of astrobiology and why it is useful Contains a new chapter "What is Life?" that explores the history of attempts to understand life Contains 20% more material on the astrobiology of Mars, icy moons, the structure of life, and the habitability of planets New 'Discussion Boxes' to stimulate debate and thought about key questions in astrobiology New review and reflection questions for each chapter to aid learning New boxes describing the careers of astrobiologists and how they got into the subject Offers revised and updated information throughout to reflect the latest advances in the field Written for students of life sciences, physics, astronomy and related disciplines, the updated edition of Astrobiology is an essential introductory text that includes recent advances to this dynamic field.

Many environmentalists think going into space detracts from solving problems here on Earth. Many astrophysicists feel environmentalism hampers their exploration and settlement of space. Actually environmentalism and space exploration have one and the same objective, argues leading astro-biologist Professor Charles Cockell: to ensure humanity has a home.
Cockell calls for a fusion of the two movements as the only way forward. The technologies we develop to live sustainably on Earth, such as wind and solar power, will also establish humanity in space. The exploration of space will provide new resources and skills for the protection of the Earth's environment. For example, studying extreme environments on Earth is helping us to look for life on Mars and satellites orbiting Earth are helping track hurricanes and protect people from natural disasters.
There are many books on environmentalism and many on space faring. "Space On Earth "is the first to provide a new vision of humanity's future bringing these two goals together.