The hidden history of the moon
There is no one who has not been charmed by the moon on a clear night, when it is a shining full moon that fills the sky with beauty
Since primitive times, man has been looking at the sky
He sees the moon and the stars, and questions arise in his mind
The moon holds a mysterious secret
?Where did the moon come from
?How did he orbit around the planet
What is the role of the moon in the story of the formation of the ?earth
Let's get to know the moon from another unusual angle
Moon rocks and its surface resemble a historical record of what happened long ago
?What did the moon teach him throughout its long history
The rock samples brought by the Apollo mission more than 50 years ago showed that the Earth and the Moon share one common origin
moon star
Many theories have been put forward to explain the formation of the moon, including the most famous theory
The big collision theory
Four and a half billion years ago, the solar system was a different place.
The sun was a strong star, spinning violently, affecting a cloud of shrapnel and dust revolving around it..
There were planets forming, crimes and asteroids colliding, and the planets began to grow and collect more matter, increasing their mass and attractiveness, and attracting more and more rocks, meteorites and asteroids, and among them was Earth, which was still alone without .... a moon ....
After 80 million years of beginning and formation, the newborn Earth was on a date with a violent and large collision with a huge asteroid that intersected its orbit with the Earth and attracted it to it. It is the asteroid Theia.
Asteroid Theia
After the collision, the asteroid is crushed and leaves the earth as a flaming ball surrounded by an atmosphere of vaporized rocks and gases resulting from the fusion of minerals and earth rocks, and with it the elements of the asteroid itself.
Hundreds of years ago, the earth and the collision wreckage took its toll, and the rocks and shrapnel circled the earth
And collided with each other and took to conglomerate and gather in a crime
My main newly formed it's the moon
The foregoing was a simplification of the theory of the great collision
But it has one shortcoming:
The composition of the Earth and the Moon are identical as twins, and we can see that in the identical isotopes of the elements in both of them, and there are no other external elements such as the supposed asteroid (Theia)
And now we move on to another strange theory
geological interaction
It assumes that early in the Earth's history when it formed, there was an abundance of radioactive elements and their isotopes, uranium and radio, in the crust and interior of the planet.
With the acceleration of rotation and centrifugal force, the radioactive elements tended to concentrate in the core of the planet.
Near the center, the result is a massive nuclear explosion below the planet's surface that ruptures and separates about a quarter of it.
!!From the mass of planet Earth,, imagine what could happen
Billions of tons of planet matter, rocks and crust flew into space, around the planet in all directions.
The rocks and fragments revolved, forming a huge ring around the planet, like the well-known rings of Saturn.
After the passage of several millions of years, and under the influence of gravity and continuous rotation, it formed what is known as the moon.
This theory also explains the similar structure of the Earth and the Moon, but the objection this time was:
Some scientists rule out the idea that the concentration of uranium and radioactive elements in the depths of the planet reaches critical or sufficient quantities to the point of starting a nuclear reaction and an explosion of this supposed huge size.
Now we have reached this conclusion: The first hypothesis (the big collision) The second is the geological reaction.
Source :Websites