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Two top astronomers (and bestselling authors) take a cutting-edge look at how life itself develops, survives, evolves, becomes intelligent, and where it might exist in outer space. Illustrated with breathtaking photos and state-of-the-art graphics, this thrilling story reveals a newfound understanding of the conditions that fostered life on Earth; how stars and planets are formed; the specific qualities of the Sun and planets in our solar system; and the techniques required to observe phenomena outside our system. The fascinating advances in technology and information revealed here could enable us to locate extraterrestrials within the next 20 years