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On one clear, starry night a Portuguese explorer called Ferdinand Magellan sailed over the equator to the Southern Hemisphere. Not only had he entered new lands and seas, but from there he saw an entirely new sky! Since the southern half of the planet is facing a different direction in space than the north, southerners see different stars and galaxies than the northerners do. Looking at this new set of stars, Magellan noticed what looked like a blurry cloud. But as his voyage continued, the “cloud” didn't move…
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