Gadgets: Mars’ Long Lost Moon Could Help Explain Its Extreme Terrain, Claims Study

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Mars' Long Lost Moon Could Help Explain Its Extreme Terrain, Claims Study

Mars may have once had a larger moon, possibly named Nerio, which could explain its odd ellipsoidal shape and unique terrain features like the Tharsis bulge and massive volcanoes. Michael Efroimsky, an astronomer at the U.S. Naval Observatory, proposes this idea, although more research is needed to confirm it. The disappearance of this moon might have been due to a co...

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