What difficulties do humans need to overcome when landing on the sun?

As long as I see someone put forward the idea that man should go to the sun, I will think of that joke A country proposed landing on the sun. People can't help asking: how can the sun get up in such a hot weather? ? Experts say:? It's simple, we can go up at night! ? As soon as the expert's voice fell, warm applause rang out from the audience. I want to ask the expert: Where is the sun at night? ? Expert:? Your question is terrible! ?

Although it is a joke, we all know that the temperature of the sun is very high. The high temperature of the sun will make people stay away from it. What difficulties do humans need to overcome when landing on the sun?

Illustration: The Sun

First of all, human beings have to challenge the high temperature of the sun. The temperature of the sun is high. In winter, we will build a stove in the room to keep warm. A small stove can warm the whole room. The distance from the sun to the earth is 65.438+0.5 billion kilometers. Even after such a long distance, the earth can still feel the warmth of the sun. The surface temperature of the sun is 5500℃. The temperature on the surface of the sun has been horribly high. But the temperature in the corona layer outside the surface of the sun is higher. The temperature of the corona layer is as high as 2 million degrees Celsius. Such a high temperature can make anything on the earth disappear when it approaches the surface of the sun. Humans should be close to the sun unless they can develop materials that can resist the high temperature of the sun. Otherwise, it's only daydreaming that humans want to land on the sun.

Illustration: The surface of the sun

Secondly, the mass of the sun is very large. The sun is the largest celestial body in the solar system. The mass of the sun accounts for 99.86% of the total mass of the entire solar system, which is 330,000 times that of the earth. If we reach the surface of the sun, our weight will be 20 times that of the earth. A person weighing 80 kilograms becomes 1600 kilograms when he reaches the sun. This weight will crush people. Moreover, the escape velocity of the sun's surface is about 6 18 km per second. This is 55 times the escape speed of the earth (11.2km per second). After the human spacecraft comes to the surface of the sun, if the speed is not fast enough, it will never fly out. Therefore, another major challenge facing mankind is how to avoid being crushed by gravity and how to fly out of the sun again after coming to the surface of the sun.

Illustration: Man boarded the sun.

Third, the radiation from the sun is very dangerous. The human power communication facilities on the earth are often destroyed by solar storms. The sun is a huge plasma. It releases high-energy charged particles and a strong magnetic field, which will kill the astronauts in the spacecraft within minutes or disable the spacecraft's circuit system. This is the third difficulty that human beings have to overcome, how to protect spacecraft and human beings from solar radiation.

Illustration: Parker solar probe

There are still many difficulties for human beings to land. I think the high temperature alone will make people never get close to the sun. The idea that man wants to go to the sun may never come true. If human beings have to go to the sun, it is doomed to be a journey of no return. Who do you think isn't? What difficulties do humans have to overcome when landing on the sun?