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The biggest questions in astronomy are those of how the planets, stars, galaxies, and the Universe were formed. ORIGINS describes how over the last decade, astronomers have discovered the probable answers to three of these fundamental questions. Starting with the space missions that have uncovered the haphazard history of our own planetary system, this book travels into space and backwards in time, describing the discovery of other planetary systems and their connection to extraterrestrial life. The first moments in the life of a star are covered, along with the birth of galaxies, and the biggest question of all - the origin of the Universe itself.