Life is the most mysterious thing in this world. How was life born? At present, scientists are also actively researching. According to the evolution theory of , we can know that all living things on the earth evolved from simple organisms, evolved from the original single-cell organism to the multi-cell organism , evolved from the multi-cell organism to the marine organism , evolved from the marine organism to amphibian organism, and evolved from amphibian organism to terrestrial organism. Humans evolved from the terrestrial organism to the apes. According to the research of scientists, we can know that the earth was born 4.6 billion years ago, that is, the early stage of the birth of the solar system. During the long years of the earth, organisms on the earth experienced a total of 5 mass extinction events.
The first mass extinction occurred 440 million years ago. This mass extinction event is called the Ordovician mass extinction event. Scientists speculate that this mass extinction may be related to the sudden cooling of the earth. Due to the sudden drop in the temperature on the earth at that time, a large number of sea water freezes. After the ocean freezes, many marine organisms were frozen to death. The second mass extinction of occurred 365 million years ago. Scientists believe that amphibian organisms had evolved on the earth at that time, and this mass extinction may be related to the eruption of the undersea volcano. After the eruption of the undersea volcano, a large number of magma erupted from the seabed, causing the temperature of the ocean to rise continuously, and many marine organisms were scalded to death.
The third mass extinction occurred 250 million years ago. Scientists believe that this mass extinction event is the most serious mass extinction event in the history of the earth, causing 96% of the organisms on the earth to become extinct. Scientists speculate that the cause of this mass extinction may be related to the movement of the continental plates. The fourth mass extinction occurred 200 million years ago. Scientists speculate that this mass extinction may be caused by the high oxygen content on the earth. Due to the high oxygen, it is very easy to cause fires, so many organisms may be burned to death by the fire. The fifth mass extinction occurred 65 million years ago. Scientists believe that an asteroid with a diameter of 10,000 meters hit the earth at that time.
After the asteroid hit the earth, a large number of volcanoes on the earth erupted. carbon dioxide was in the air and could not be dissipated for decades. Many creatures died. At that time, the overlord on the earth was dinosaurs. Dinosaurs ruled on the earth for 160 million years. If the asteroid had not hit the earth, dinosaurs might still be alive. Dinosaurs were the most powerful terrestrial creatures discovered by humans on earth, especially the Tyrannosaurus rex of the late Cretaceous family. They had huge bodies and developed facial muscles, and their bite force could reach 120,000 Newtons. At that time, Tyrannosaurus rex basically had no opponents on land.
However, no matter how powerful a creature is, it cannot withstand natural disaster . The impact of an asteroid causes 90% of the creatures on the earth to perish. Seeing this, many friends may have a question, is the power of asteroid impact so great? According to scientists' research, the asteroid that hit the earth 65 million years ago is located in the Yucatan Peninsula, Mexico. The energy generated by the asteroid hitting the earth this time is equivalent to 3 billion times the energy of Hiroshima atomic bomb. For humans, this is definitely an astronomical figure, so we must not underestimate the power of the asteroid hitting the earth. Although scientists can only analyze the events that happened 65 million years ago through speculation and judgment.
This leads to many people doubting the real reason why dinosaurs were extinct at that time. At present, meteorite hit the earth is the mainstream theory that causes dinosaurs to extinction. Although we have not witnessed it with our own eyes, scientists have made a lot of efforts to find evidence. According to scientists from the Center for Space Science and Technology of Curtin University in Australia, they studied the samples brought back by Chang'e-5 . After research, scientists found that there are many tiny glass beads in the sample, and these glass beads were not produced by the moon. Scientists have concluded that these tiny glass beads were formed under the high temperature and pressure generated by the fire meteor during the impact. In this regard, scientists speculated that the impact suffered by the moon may be related to the impact of the asteroid hitting the earth 65 million years ago.
Scientists analyzed the age of these glass beads and found that these glasses were formed about 65 million years ago, that is, when the asteroid hit the earth, the huge impact force generated by the asteroid hit the earth. The powerful impact force throws the debris on the surface of the earth into the air, and some may be impacted on the moon, so the matter on the earth is left on the moon. At present, humans are still studying the mystery of the moon. Scientists believe that the moon is the most mysterious satellite in the solar system. Among the satellites in the solar system, the mass and volume of the satellite are thousands of times smaller than the mass and volume of the planet, while the mass and volume of the moon are only dozens of times smaller than the mass and volume of the earth.
After analysis, scientists found that if the earth cannot capture the moon according to the gravity of the earth, then how did the moon form? Many scientists speculate that in the early days of the solar system, a huge asteroid hit the earth, causing a small part of the earth to be knocked out, and the part that was knocked out became the moon. The moon is very important to earth's creatures. The moon will cause tidal phenomena to the earth and can withstand the impact of various asteroids. If there is no moon, the night on the earth will become very dark. In addition, scientists have also discovered many rare substances on the moon, such as helium-3.
But humans are not able to go to the moon to mine resources. After all, there is a big difference between the lunar environment and the earth's environment. There is no air or water resources on the moon, and the temperature is very low. If humans want to mine resources on the moon, they must wear space suits and transport large equipment. At present, transporting large equipment is the most difficult thing for humans. After all, human technology is limited. If you want to realize your desire to mine the moon, you still need to continue to work hard. However, the editor believes that humans are the wisest life on the earth. Human science and technology are constantly developing. With the advancement of human science and technology in the future, humans will definitely be able to unlock the mystery of the moon. Do you have anything to say about this?
