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This image shows Mercury as a small black dot moving across the face of the Sun during its rare transit on May 9, 2016. This image shows a gravity map of Mercury created using data from NASA’s ...
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Live Science on MSNMercury is weird because of a 'hit-and-run' incident in its youth"What surprised us, at the end, was how effective this type of impact could be in explaining Mercury's unusual structure ...
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