A study reveals the effects of an ancient asteroid on the north and south poles of the moon


In a new study, scientists revealed that ancient collisions with asteroids moved the north and south poles of the moon about 186 miles, as a team at NASA’s Goddard Space Flight Center in Maryland used computer simulations to erase thousands of craters from the moon’s surface, as if they were back in time 4.25 billion years. When the pits weren’t there.

Their work led them to discover that asteroid collisions caused the poles to move 10 degrees in latitude or about 186 miles, and to put that into perspective, the moon’s total diameter is 2,159 miles.

These wandering plumes could teach scientists more about the poles, which are more valuable regions because of the frozen water that has been discovered there.

Vishnu Viswanathan, a NASA Goddard scientist who led the study, said in a statement: “Based on the history of craters, polar wandering appears to have been moderate enough for water near the poles to remain in the shadows and have stable conditions for billions of years.

Asteroid impacts etch mass and leave depressions in the surface, or pockets of lower mass, but the Moon will reorient itself to bring those pockets toward the poles, bringing regions of higher mass toward the equator by centrifugal force.

For their study, published in the Planetary Science Journal, the researcher and colleagues worked on about 5,200 craters ranging from 12 miles to 746 miles wide, designed computer models to take the coordinates and display the craters to determine their gravitational signatures, then ran simulations that removed the gravitational signals, and recreated The detail goes back to 4.25 billion years ago.

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