The Moon is getting 1½ inches (3.8 centimeters) farther away from the Earth every year. Scientists measure the distance to the Moon by bouncing lasers off mirrors placed there by space probes and ...
The Earth has a second moon? Not exactly, though social media would have you believe it. Earth has only one true natural satellite – our 2,159-mile-wide moon located approximately 239,000 miles away.
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