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China's Yutu Rover Finds Layers Inside Moon

The moon has a more complex history than previously thought with at least nine subsurface layers, results from ground-penetrating radar aboard China's Yutu lunar rover shows, scientists said on Thursday. Researchers suspect the layering is due to ancient lava flows interspersed with layers of the lunar soil, known as regolith, which is formed by the weathering of rocks and boulders. China's Chang'e-3 spacecraft touched down on the moon in December 2013 and dispatched the...

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