Just as the Moon’s gravity influences the Earth, mostly visible through ocean tides, the opposite is also true. As a binary system, the Earth and Moon actually influence each other. A new report from NASA indicates that we now have evidence of just how much influence Earth has on our closest neighbor. NASA’s Lunar Reconnaissance Orbiter (LRO) spacecraft data shows that Earth’s gravity has influenced the orientation of thousands of faults that form in the lunar surface as the Moon shrinks.
The faults investigated during this study are small, typically only a few tens of yards (meters) high and less than 6 miles (10 km) long. Scientists think these faults are formed by the Moon shrinking in size as the hot core cools and contracts. When that happens, areas of the Moon’s crust buckle and form the faults. Their locations on the surface appear to be random, but they are rather evenly distributed.
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Source Credits: Joe Latrell in Spaceflight Insider