The moon gets smaller, causing wrinkles in its surface and moon cakes, according to a new study.
When the lunar interior cools, it shrinks, causing its hard surface to break and form lines of error according to research sponsored by NASA. The moon has become about 150 feet skinnies over the last few hundred million years.
NASA posted a video on Twitter that shows error lines on the lunar surface.
The astronauts have put seismometers on the moon over a number of past missions. Researchers who stated that the moonquakes are close enough to the fault lines to establish causal relationships, published their analysis in a Nature Geoscience study Monday, NASA said. The room agency has also recorded evidence of error lines in a number of images.
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"Our analysis gives the first proof that these errors are still active and are likely to produce moon cakes today as the moon continues to cool and shrink, "said Thomas Watters, study author and senior researcher at the Center for Earth and Planet Studies at the Smithsonian National Air and Space Museum, according to a press release on NASA's website.
Watters says the earthquake can be strong about a five on the Richter scale, according to the NASA statement.
You've heard of earthquakes. But what about moonquakes? As a wrinkled grape that dries to a raisin, the Moon shrinks as its inner cooler, causing wrinkles or flaws to form on its crisp surface. When there is sufficient voltage, it releases quakes: https://t.co/H3ixgywT1p pic.twitter.com/OxNrVveAQk
– NASA (@NASA) May 13, 2019