Studies have shown that pollution, whether from factories or traffic-snarled roads, disproportionately affects communities where economicall...
Friday, June 14, 2019
ScienceCasts: Did Earth Have Two Moons?
Did our planet once have two moons? Some researchers say so. Moreover, the missing satellite might still be up there--splattered across the far side of the Moon. NASA's GRAIL mission could help confirm or refute the "two moon" hypothesis.
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