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Nasa Study Solves Two Mysteries About Wobbling Earth
Earth does not always spin on an axis running through its poles. Instead, it wobbles irregularly over time, drifting toward North America throughout most of the 20th Century (green arrow). That direction has changed drastically due to changes in water mas
Credit: NASA/JPL-Caltech
Using satellite data on how water moves around Earth, NASA scientists have solved two mysteries about wobbles in the planet's rotation—one new and one more than a century old. The research may help improve our knowledge of past and future climate.
From Jet Propulsion Laboratory/NASA
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