In the Eye of the Earth the moon seems to have dark areas. But on the side of the moon that still supports the Earth, it is exactly the crater. Why do both sides of the moon look different? A recent study has revealed.
Yes, the moon has two different faces. One is continually perceived from the Earth, the other has never been seen from the Earth. That’s because the moon knows the blockage of gravity, so only one side faces the Earth.
The gravitational lock makes the rotation time (rotations on the axis) of the moon as fast as the rotation (around the movement) makes the moon on Earth, which is about 29.5 days.
The two-way difference of the moon itself has been known since 1960. The difference, however, is not only due to the appearance, but also to the height, composition and thickness of the crust between the two sides of the moon.
Now, a curious group of astronomers are trying to explain this asymmetrical moon form. Scientists claim that the moon had experienced collisions with other celestial bodies on the near side of the moon, a side still standing in front of the Earth, which has many materials on the side of the moon before rising as “on the other side Of the moon, the side that still receives the Earth.
In total there are about 360 computer simulations trying to explain how these collisions occur. These simulations were not without data, but were already based on research results from NASA and the lab (GRAIL) recovery in 2012.
On the 360 simulations, the best scenario was found that the moon struck a dwarf planet of about 780 kilometers in the early days, or slightly smaller than the largest object on the asteroid belt, the dwarf planet CERES. Development of the solar system billions of years ago.
The dwarf planet crashed into the natural satellites of our planet at a rate of about 6.25 kilometers per second, the actual rhythm relatively slowly, only about a quarter of the speed of meteors entering the atmosphere of the Earth.
The moon collision with the dwarf planet caused a lot of material on the side near the unordered moon to disperse in orbit, but then fall back on the other side of the moon by adding 5 to 10 kilometers of crust on that side. This scenario explains the observation of the GRAIL, which notes that there is an additional layer of crust on the other side of the moon, as well as the differences in the composition between the Earth’s crust and the lunar crust.
So instead of the second month around the Earth, the dwarf planet was actually on its way to colliding with the moon, forming a young month at the time. Such a dwarf planet is just one of many large objects abundant in the early days of the solar system.
That is why we now see two different sides of the moon. The narrow side of the moon tends to have more mare (a darker area formed from the cold lava), while the far side of the moon has more craters.
In fact, the earth was also briefly touched by a similar dwarf planet. According to the theory of moon Formation, the Earth was hit by the dwarf planet from March, known as the Theia. The collision of Theia with old Earth eventually formed the moon.
The findings of the study on the reason why both sides of this month look different may be better read in the Journal of Geophysical Research: planets.