NASA has found that the poles on the moon changed over time, the agency revealed in a recently published blog. This is what NASA said.
Did you know that the moon also has a north and south pole, just like the Earth? NASA scientists recently discovered that not only were the lunar poles present billions of years ago, but they also moved over time. The moon has had huge craters on the surface from asteroid impacts over millions of years. These craters preserve history that can help scientists study the early years of our solar system. In a recent NASA blog, scientists revealed that the moon’s poles have moved over time.
A team of scientists at NASA’s Goddard Space Flight Center in Greenbelt, Maryland conducted an astonishing study to uncover lunar conditions billions of years ago. According to the blog, scientists used computer simulations to turn back the clock and remove thousands of craters from the lunar surface, revealing what the moon was almost 4.2 billion years ago. They made an amazing discovery when they found that the moon’s north and south poles moved for a little over billions of years. The study is published in the Planetary Science Journal.
Due to the constant bombardment of asteroids, the moon moved a bit over time. As a result, the moon’s poles shifted a distance of 10 degrees in latitude, which is about 300 kilometers, in what it called the “pole wandering”. Vishnu Viswanathan, NASA Goddard scientist who led the study, said in the blog: “Based on the crater history of the moon, the polar wander appears to have been moderate enough to have kept water near the poles in shadow and for billions of years. to have enjoyed stable conditions.”
While a similar effort to study lunar conditions by removing craters has been attempted before, only large craters were removed and the smaller ones were neglected. However, this team has removed thousands of craters, large and small, from the lunar surface. Sander Goossens, a Goddard planetary scientist who was also involved in the study, said in the NASA blog: “Here are a few things that we haven’t considered yet, but one thing we wanted to highlight is those tiny craters. those people have neglected, they really matter, so that’s the main point here.”