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On the Shoulders of Giants
Left: Over thousands of years the orientation of the Earth's rotational axis changes, like that of a spinning top as it slows down. (Animation by Robert Simmon, NASA GSFC) | ||
return to: Orbital Variations | |||
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On the Shoulders of Giants
Left: Over thousands of years the orientation of the Earth's rotational axis changes, like that of a spinning top as it slows down. (Animation by Robert Simmon, NASA GSFC) | ||
return to: Orbital Variations | |||