The moon is gradually decreasing over time, causing wrinkles in the earth's crust and the moon, according to photographs taken by NASA's orbiter.
Unlike the Earth, the moon does not have tectonic plates. Instead, since the moon's interior has cooled over the past few hundred millions of years, it has wrinkled the surface when it's squeezed. Unlike the flexible skin of grapes, when it is compressed into a raisin, the crust of the crust of the moon is torn. This creates stepped rocks, called traction breaks, when part of the crust is raised upward and over another tight part of the crust
. At present, thousands of rocks are scattered on the surface of the moon, which is on average several kilometers and dozens of yards. high. Since 2009, the orbit has been shooting over 3500 of them. In 1
Today the moon is 50 meters "worst" due to this process. And when it shrinks, the moon actively produces lunatics along faults. The researchers re-analyzed the seismic data they had from the moon to compare with the images collected by the orbital body.
Data from seismometers placed on the moon during Apollo 11, 12, 14, 15, and 16 missions revealed 28 months of damage recorded between 1969 and 1977. The researchers compared the location of epicentres for earthquakes with orbital imprints of malfunctions. At least eight earthquakes have occurred due to activity along the disadvantages. This eliminates the possibility of asteroid strikes or mourning from the moon's interior.
This means that Apollo seismometers recorded a reduction in the moon, according to researchers. On Monday, Nature's Geoscience magazine published Apollo seismic data and analyzed more than 12,000 photos of the orbital window.
"It is very interesting to see how data from almost 50 years ago and from [orbiter] missions were combined for our understanding of the Moon, suggesting that future missions to study the inner processes of the moon should go", – said John Keller in his study. , as well as a researcher at the Lunar Reconnaissance Orbiter project at the NASA Goddard Space Center
Researchers believe that earthquakes are still occurring on the moon, which means that it is actively changing. "said Thomas Watters, Senior Researcher at the Center for Earth and Planetary Studies at Smithsonian The Washington-based Ion Museum of Air and Space. "Some of these earthquakes can be quite strong, near the Richter scale."
Some earthquakes also occurred at a point in the orbit of the Moon when it was most distant from Earth, indicating that the tidal stress of the earth's gravity can
"You often do not see active tectonics anywhere in the world, except Earth, so it's very interesting to believe that these flaws can still produce echoes," said Nicholas Shmerr in his statement the author and associate professor of the Department of Geology at the University of the State in Maryland Scherr developed an algorithm that re-analyzed Apollo's data. Subsequently, the surface of the moon darkens due to weathering and radiation, so bright spots are areas in which recently activated areas on the surface of the moon. – said Shmerr. "We learned a lot from the Apollo missions, but they really scratched the surface. With a large network of modern seismometers, we could make huge strides in our understanding of the geology of the moon."
"The creation of a new network of seismometers on the surface of the Moon should be a priority for human research. The moon, to learn more about the Moon's interior and to determine how dangerous it is said Rene Weber, co-author of the study and planetary seismologist at NASA's space flight, in a statement
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