The solar system is not only the home of the earth, but also the home of human beings. When human beings walk out of the earth with the help of science and technology, the first goal to explore is the entire solar system. For the solar system, we know that there are eight planets, the Kuiper belt and a large number of asteroids.
In order to reveal the mystery of the solar system, it is necessary to understand the origin of the solar system and the early situation of the solar system. However, the solar system was formed 4.6 billion years ago. What was the solar system like at that time? If you want to understand the early solar system, you need to find the material that formed in the early solar system.
In the solar system, only asteroids can retain the early material of the solar system for more than 4.6 billion years. Because the eight planets all have their own ecological environment and systems, in billions of years, there has been no material formed in the early solar system, even if there is, it is difficult to maintain pure natural and primitive material.
Only some asteroids, because they have no atmosphere and ecological environment and are completely exposed to the space environment, can still keep the appearance of the early solar system, and the material of the early solar system may still exist in these asteroids. In order to explore and collect the rock material on these asteroids, scientists launched various asteroid probes, one of which is Falcon 2.
Falcon-2 is the world’s first follow-up aircraft to collect asteroid samples and return to earth. Its launch target is to reach asteroid 1999ju3, which may contain rocks containing organic matter and water. The target asteroid of falcon-2 probe is an asteroid named dragon palace. This asteroid is a rock type (carbonaceous) rock asteroid, about 340 million kilometers away from the earth. Scientists believe that this rock asteroid may have sent the basic elements of life to the earth in the collision with the earth a long time ago.
On February 22, 2019, the “falcon-2” probe successfully landed on the Longgong asteroid for a short time. On April 25, the Japan Aerospace Research and Development Agency (JAXA) announced that the probe “falcon-2” hit the surface of the asteroid “Longgong” with a metal bomb to make a crater, which was the first experiment in the world and achieved success. The crater can be seen in an image taken about 1.7 kilometers above the asteroid.
Some people may not understand why the probe launched metal impact bullets at the Dragon Palace asteroid? In fact, the purpose is very simple, which is to prepare for landing on the asteroid again and collecting rock samples. Although the Longgong asteroid may have preserved the materials of the early solar system, these materials may exist under the surface of the asteroid.
Although there is a large amount of rock material on the surface of Longgong asteroid, due to their exposure to space and the influence of solar wind and other cosmic radiation, they may no longer be pure original material. Therefore, Falcon 2 can only collect the original material of the early solar system above Longgong asteroid under the surface of the small planet.
The simplest way to collect the material under the surface of an asteroid is to impact, launch a metal warhead, and use the high-speed shock wave to create an effect similar to a meteorite impact on the asteroid. In this way, a crater will be hit on the surface of Longgong asteroid, and the material under the surface will also be hit. After the impact, the falcon-2 probe will choose another landing plane Asteroids, collect rock material from the impact and return to earth.
Of course, it is very simple for falcon-2 to launch a metal warhead to impact an asteroid, but the technology behind it is not low, and this is also the first time that human beings have realized the impact on an asteroid, which represents a great significance. This success also provides a reference and direction for other asteroid probes to collect asteroid materials.
Falcon 2 plans to land on Longgong asteroid again before June and collect samples. It plans to return to earth by the end of next year. If all goes well, we can see Falcon 2 successfully return to earth with rock samples of asteroid by the end of 2020. What scientists will find in these rock samples is what we have to look forward to.
In fact, there are many asteroids in the solar system. In addition to the asteroid belt between Mars and Jupiter, the Kuiper belt on the edge of the solar system is a belt of celestial bodies around the solar system. The number of asteroids here is too many to estimate. The farther away from the sun the asteroid is, the more likely it is to preserve the early material of the solar system.
New horizons also found some asteroids at the edge of the solar system that still retain the early formation of the solar system. This is a fossil Bank of the solar system. With the continuous progress of human science and technology, it is an important plan and task to explore the Kuiper belt at the edge of the solar system in the future. The mystery of the early formation of the solar system may be solved there.
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