The moon is cooling and contracting. What is the reason for the contraction of the moon
4hw.com.cn: Recently, NASA issued a statement. Through the latest research, it was found that faults were formed due to the cooling inside the moon. Of the 28 earthquakes on the moon, 8 were near the faults. Let's see the details below.
In 2010, high-resolution images from NASA's Lunar Reconnaissance Orbiter showed that there were thousands of fault networks on the moon, which looked less than 50 million years old. The researchers believe that these faults are evidence of lunar structure, although it is not clear that this activity is recent.
Seismographs at four Apollo landing sites on the moon recorded between 1969 and 1977 &# 8203; 28 shallow moons with a Richter scale of 1.5 to 5. Some of these shallow earthquakes may be theoretically caused by the activity of lunar faults, but the location and depth of these earthquake sources are uncertain.
The moon may originate from the tectonic activity of the lunar crust. For example, the Apollo mission found about 11000 moons below the lunar surface, occurring between about 500 and 680 miles (800 and 1100 kilometers). Study co-author Nicholas middot, a planetary seismologist at the University of Maryland; Schmell said that previous studies have shown that these deep lunar earthquakes are caused by the earth's gravity on the interior of the moon, just as the moon's gravity on the earth's waters.