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NASA study: The moon shrinks, causing "moon shakes"



According to NASA, the moon is shrinking.

Maybe it does not sound too much, but research shows that the moon has become "150 feet thinner in the last several hundred million years"

according to press release issued by National Aeronautics and Space Administration.

As the grape wrinkles shrink to the raisins, the moon wrinkles as it shrinks, NASA said.

Bob Bonadurer, director of the Planetarium of Daniel M. Soref at the Milwaukee Public Museum, discovered fascinating discoveries.

But he warned that contraction would not be visible to people.

"We're talking about 1 inch for 1 million years," said Bonadurer with a laugh.

"But it's great to get to know the moon and know that something is happening there," he added.

Because the surface of the moon is hard and brittle, faults develop as it shrinks.

This leads to seismic activity, which NASA calls "moonquakes".

"Our analysis gives the first evidence that these disadvantages are still active and are likely to cause earthquakes today when the moon gradually cools and shrinks," said Thomas Watters, senior scientist at the Earth and Planet Research Center at Smithsonian & # 39; s National Air and Space Museum in Washington.

"Some of these shocks can be quite strong, around 5 on the Richter scale," added Watters.

Watters conducted a study that analyzed data from four seismometers previously placed on the moon by Apollo astronauts.

"I think it's very exciting that scientists are still looking at the moon and are still using some of the instruments that astronauts left behind." – Bob Bonadurer, director of the Planetarium of Daniel M. Soref

Researchers calculated the locations previously indicated for the detected shocks and found that eight of the 28 shallow quakes in the years 1969-1977 "were within 30 kilometers (18.6 miles) of damage visible in the moon pictures."

"This is close enough to pre-assign the shakes, because the team modeling shows that this is the distance at which strong shaking is expected, given the size of these faults," NASA researchers summarized.

"I think it's very exciting that scientists are still looking at the moon and are still using some of the instruments that astronauts left behind," said Bonadurer.

The moon is not the only thing in the solar system that shrinks with age.

Mercury has very large drop thrusts – up to about 600 miles in length and over a mile in height, indicating that it has shrunk much more than the moon.


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