Jupiter has 63 satellites, four of which are larger than Earth.
In contrast, some planets do not have any moon, while the Earth has only one moon, 240,000 miles away.
What is more surprising is that this is what the Earth needs to become a viable planet. The moon has the right size and dimension to give the earth life and stability factors; if it is closer or bigger than it is now, its attractiveness will increase the tidal force to the coastal cities twice a day The tsunami will not be less than two kilometers) .. When the water recedes the sea will withdraw to the inside for hundreds of kilometers in a manner not suitable for the emergence or living of the current marine creatures ..
The Earth will lose its balance completely and oscillate around its axis (such as a crazy magnet). This creates a severe disturbance in the climate and the oceans so that the atmosphere is exposed to permanent drift and the oceans of the world are flooded by the ocean twice (In the end, Earth's gravity will not be able to retain our air and water cover as it did to Mars)!
There are three main hypotheses that explain the presence of the moon around Earth:
The first says that they form at the same time with Earth in the same way (by intensifying the focus of the cosmic nebula)
The second was that it was an independent planet that deviated from its orbit and then suspended with the gravity of the earth (as happened with two satellites for the buyer)!
The earliest hypothesis is that the moon was part of the earth and then separated from it after a planet collided with it!
Until a short while the last hypothesis was the last conceivable possibility. Today, it comes in the forefront and has the most consistent evidence. A small planet called Orpheus is believed to have collided with the earth before it was completely hardened. This impact could have divided the earth into two halves if it had been hit directly. However, it hit its surface with a slanted angle (or, as it is said, rinsed), breaking one sixth of its mass.
Some scientists believe that this "rinsing" happened in the Pacific Ocean where a large layer of the earth's crust was removed and subsequently filled with ocean water!
The separation of the moon in this way helped that the collision occurred at a time when the surface of the earth was soft and had not yet solidified. This situation helped heal the earth from its great wound and its return to the grave again (thanks to their continuous rotation)!
Of course, if this collision is repeated (in our day), the manifestations of life on the planet will disappear within minutes .. However, the occurrence early in the Earth's age caused the appearance of the moon and its contribution to the emergence of life itself ..
The moon has always been a distance of 2.5 cm per year and a day will finally come out of Earth's gravity. It is believed that its decay in the past centuries caused (at a certain level) to change the Earth's axis by only one degree The drought of the Sahara Desert and the transformation of the forests of the Arabian Peninsula into sand in the Empty Quarter.
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The moon is not only beautiful and not created by God only to be spun by poets, but an element of balance contributed to the emergence of life in a way that rarely occurs in the universe.