The Earth and the Moon (The Solar System)

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The Earth and the Moon (The Solar System)

The moon is the only body in the solar system outside of the Earth that has been visited by humans. More than 440 pounds of lunar material are brought by NASA and Soviet space missions to Earth for study. The information gleaned about the moon from this relatively small pile of rocks is mind-boggling and stands as the greatest proof that Martian planetary science would be greatly enhanced by returning samples to Earth. Compositional studies of lunar rocks show that the moon and the Earth are made of similar material, and because lunar material has not been reworked through erosion and plate tectonics, it sheds light on the early formation of the moon and its internal evolution. Presented in full color, The Earth and the Moon, Revised Edition compares the Earth with the other planets from the point of view of a planetary scientist. It provides in-depth information on the fundamental aspects of the Earth as a planet including its size and mass, its orbit, and the causes of its seasons.

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