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National Geographic leans on its expertise in cartography, travel, and science to offer this guide covering expected material on the cosmic bodies that are most familiar to laypeople: Earth itself and the moon and sun; information on the solar system; an aid to viewing the night sky (charts of the 88 constellations visible in the northern and southern hemispheres); "More Celestial Sights," such as supernovae; an introduction to astrotourism and archaeoastro...Log In or Sign Up to Read More