Moon
The moon is a planet of our earth. It is 240,000 miles from earth. Its diameter is 2163 miles. Galileo Galilei did the first research about the moon in 1609. He said that the moon is a sphere like our earth. He also expressed the view that the moon has mountains and volcanic eruptions. There is neither air nor water in it. Due to the absence of which, no traces of life are found on the moon. This has been proven by manned aircraft. During the day it is very hot, and at night it is cold. This difference occurs within an hour.
The day of the moon is equal to our fifteen days. It completes one revolution around the earth in 29 or 30 days. The moon's orbit is increasing around the earth, i.e. the average distance is increasing from the earth. The lunar and Islamic months are formed by their rise and set. The moon not only gives us a little light at night, but its gravity also creates tides in the ocean. Scientists have come to the conclusion that the geology of the moon is simpler than the earth. Also, the moon's crust is about a mile thick. And this is a rare stone formed from the Anorthosite.
Beginning
There are various theories about the shape of the moon, one theory is that it was a planet that wandered close to the earth while moving, and the gravity of the earth put it in its orbit. This theory has been prevalent, but scientists have objected that for this to be possible, the moon would have to come to a trajectory near the earth at a certain speed, which is very unlikely.
At present, scientists believe that 4.6 billion years ago, a comet hit the earth with a powerful explosion, which caused the comet and a lot of matter to evaporate from the earth. Gradually, this matter orbited the earth and came together to form the moon. The water and the elements could quickly fly away, and the remaining elements became part of the moon. This theory is further corroborated by the fact that the moon's density is approximately equal to the density of the earth's crust and contains very little iron. Because the iron part of the comet had sunk into the earth, which became the iron pulp of the earth. Simulation on computers has strengthened this theory.
The first step on the moon
On July 20, 1969, Neil Armstrong became the first man to set foot on the moon.
The reality of the moon has been unveiled. The general theory is that it is separated from the earth. There is no wind or water on the moon. Nor is there any vegetation. Apollo 2 was the first to land on the moon. Studies of specimens collected from its surface have shown that they contain large amounts of iron, titanium, chromium, and other heavy metals.
According to NASA, the United States plans to establish a colony on the moon's south pole by 2020 to send more manned missions to make discoveries about the solar system. This is the first plan to send a man to the moon since 1972. The National Aeronautics and Space Administration (NASA) says the long-term plan results from joint efforts by 14 space agencies.
Gravity
Its gravitational force is six times less than that of the earth. When the sun shines on it for fourteen days, its temperature reaches 120 degrees Fahrenheit.
The moon from the earth
From earth, we always see only one side of the moon. This is because the axial rotation of the moon and the period of rotation of the moon around the earth are the same. We can see about 41% of the moon from the earth at any one time if the moon is full. But that part changes a bit, and we can see more than half of the moon at different times, 59%, but we can't see more than 41% at a time. The average distance of the moon from the earth is 385000 km which is increasing due to the increase of the tropics. If the earth comes between the moon and the sun, then a partial or full lunar eclipse occurs. At this time, the moon appears black or reddish. If you look at the earth from the moon, the earth is always seen in the same place in the sky.
