1. The mystery of the origin of the moon
As for the origin of the moon, scientists have proposed three theories. All of them have flaws, but the "Apollo" project helped prove that the theory that seems to be the least likely is the best. theory. Some scientists believe that the moon was formed together with the earth from a cloud of cosmic dust 4.6 billion years ago. Another theory is that the moon is the "child" of the earth, perhaps "plucked" out of the Pacific region. However, the results of the "Apollo" lunar landing expedition showed that the structural components of the earth and the moon are very different. Some scientists have put forward another hypothesis, the "capture theory." They believe that the moon accidentally broke into the earth's gravitational field and was locked in its current orbit. However, it is quite difficult to explain the mechanism of this process theoretically. Therefore, the above three theories are all untenable. As Dr. Robin Britt said: "It is easier to explain that the moon does not exist than to explain its existence."
2. The Mystery of the Moon's Age
Surprisingly, analysis of rock specimens brought back from the moon found that 99% of them are older than 90% of the oldest rocks on Earth. The age of the first rock Armstrong picked up after landing in the "Sea of ??Silence" was 3.6 billion years old. Some other rocks are 4.3 billion years old, 4.6 billion years old and 4.5 billion years old - it's almost as old as the Earth and the solar system itself, with the oldest rock on Earth being 3.7 billion years old. In 1973, a lunar rock was determined to be 5.3 billion years old at the World Lunar Symposium. Even more puzzling is that these ancient rocks were collected from what scientists believe is the youngest region of the moon. Based on this evidence, some scientists have proposed that the moon was formed in interstellar space long, long before the formation of the earth.
3. The mystery of the lunar soil being older than the rocks
The ancient rocks of the moon have left scientists at a loss. However, compared with the soil around these rocks, the rocks are still young. According to analysis, the soil is at least 1 billion years older than the rock. At first glance, this may sound impossible, as scientists believe the soil is formed by crushing rocks. However, after measuring the chemical composition of the rocks and soil, scientists found that the soil had nothing to do with the rocks and seemed to come from elsewhere.
4． The mystery of the hollow ball-like sound the moon made when a huge object hit it
During the "Apollo" expedition, the abandoned third-stage thruster of the rocket would slam into the lunar surface. According to NASA documents, "Each such noise sounded like the sound of a large bell." When the lunar landing crews landed on a particularly dark plain, they discovered that it would take a very long time to drill holes into the lunar surface. difficulty. Analysis of soil samples revealed that they contain a large amount of titanium, a rare metal on Earth (it is used in supersonic jets and spacecraft); other hard metals such as zirconium, iridium, and beryllium are also abundant. Scientists are puzzled because these metals only fuse with the surrounding rocks at very high temperatures - about 4,500 degrees Fahrenheit.
5． The Mystery of Stainless Iron
The lunar rock samples also contain pure iron particles. Scientists believe that they are not meteorites. Soviet and American scientists also discovered an even stranger phenomenon: these pure iron particles have not rusted after being placed on the earth for 7 years. In the scientific world, pure iron that does not rust is unheard of.
6. The Mystery of Moon Radioactivity
It is also an astonishing phenomenon that the 8-mile-thick surface layer of the moon is radioactive. When the Apollo 15 astronauts used thermometers, they found surprisingly high readings, indicating that the heat flow near the Apennine Plain was indeed very hot. One scientist exclaimed: "Oh God, this land is about to melt! The core of the moon must be hotter." However, what is puzzling is that the temperature of the moon's core is not high. This heat is emitted from a large amount of radioactive materials on the surface of the moon, but where do these radioactive materials (uranium, thallium and plutonium) come from? If they come from the center of the moon, how do they end up on the surface?
7. The mystery of large amounts of water vapor on the dry moon
The first few lunar expeditions showed that the moon is a dry body. One scientist once asserted that it is one million times drier than the Gobi Desert. The first few times of the "Apollo" program did not find any traces of water on the lunar surface. However, "Apollo 15" scientists detected water on the lunar surface. There is a mass of water vapor covering an area of ??100 square miles. Scientists blushed and argued that it was caused by the leakage of two small water tanks abandoned by American astronauts on the moon. But how could such a small water tank produce such a large area of ????water vapor. ? Of course this is not the urine of astronauts - it seems to be sprayed directly into the moon's sky. 8. The mystery of the glassy surface of the moon.
"Luo" astronauts discovered that many places on the moon's surface are covered with a layer of glass-like material, which shows that the moon's surface seems to have been burned by a hot fireball. As one scientist pointed out: "The moon is covered with glass."
"Expert analysis has proven that this layer of glassy material was not produced by the impact of a huge meteorite. Some scientists believe that this is the result of the explosion of the sun - some kind of micro-nova state.
9. The mystery of the moon's magnetic field
Earlier detection and research showed that the moon has almost no magnetic field, but analysis of the moon rocks has proved that it has a strong magnetic field. This phenomenon puzzles scientists. Dr. Gast declared: "The rocks here have very strange magnetic properties... completely beyond our expectation. "If the moon once had a magnetic field, then it should have an iron core. However, reliable evidence shows that the moon cannot have such a core; and the moon cannot obtain a magnetic field from other celestial bodies (such as the Earth) because If that is the case, it must be very close to the earth, and it will be torn to pieces by the earth's gravity.
10. The mystery of the mysterious "matter gathering point" inside the moon
In 1968, a probe orbiting the moon showed for the first time that there were "material accumulation structures" under the moon's surface. When the spacecraft flew over these structures, due to their huge gravity, the spacecraft flew slightly below the prescribed orbit. , and when the spacecraft leaves the sky above these structures, it will accelerate slightly, which clearly indicates the existence of these matter-focused structures and their huge mass. Scientists believe that these structures are like a bull's eye and are made of heavy elements. , hidden under the "sea" on the moon's surface. As one scientist said: "It seems that no one knows how to deal with them." "
The Moon Under the Well
One summer night, the weather was sultry. Afanti wanted to get some cool water from the well in the garden to quench her thirst and enjoy the coolness. < /p>
Afanti was bending down to sweep water from the well, when she suddenly noticed a bright moon shining on the water at the bottom of the well. "Oh my, how could the moon fall into the well? Afanti said to himself strangely. As he said that, he put the bucket into the well and said, "I must fish out the moon."
Afanti pulled the bucket that he had put down hard, but accidentally slipped and fell. Face up to the sky. Afanti took a deep breath, looked at the moon in the sky and said, "Although I fell down, I can pull the moon out from the bottom of the well!"
The moon in the well
On the night of the Mid-Autumn Festival, a bright moon hangs high in the sky, and the moonlight pours down on the earth like mercury. No one wants to miss the beauty of this festival. There were five monkey brothers who ran to the courtyard together and played under the moonlight. The little monkey was hiding by the well and accidentally discovered that there was a moon under the well. It was bright and round, as good as the moon in the sky, so he waved to invite him. Brothers come to see. Just when everyone was staring at the beautiful moon in the well, the naughty monkey brother secretly threw a stone into the well. The water in the well was stirred with a "pop" sound, and the moon at the bottom of the well appeared to be in pieces. The little monkey said with a sad face: "Brother! Why did the moon become like this?" The elder monkey said: "Brother, don't be sad, look at the moon in the sky. It’s not broken, it’s still so round and bright.” The little monkey looked up and burst into tears.
In a person's life, how many things are illusory, just like a mirror, a flower in the water, a moon in the water; any blow can shatter your dream, let us raise our heads, divert our attention, and don't be obsessed with illusory things , you should strive to grasp what you can grasp