Earth's gravitational pull stretches moon surface
Greenbelt, Md. (UPI) May 30, 2013 - Anyone who's been to the beach - and seen the ocean's tides - knows the moon's gravitational effects on Earth are rather obvious. The effects of Earth's gravitational pull on the moon are less apparent. But a new study by scientists at NASA - published in the journal Geophysical Research Letters - shows even the shape of the moon's all-solid surface changes in response to the positi ... more
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