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Great Unsolved Mysteries of Science/from the End of the Dinosaurs to Interstellar Travel and Life on Other Planets
Great Unsolved Mysteries of Science/from the End of the Dinosaurs to Interstellar Travel and Life on Other Planets Author:Jerry Lucas From the end of the dinosaurs to interstellar travel to life on other planets, this book contains mind-stretching chapters which cover each of seven unsolved mysteries of science, certain to delight and enthrall young readers.