[스페이스]The dangers of the first man to face in space – The Asian economy

[아시아경제 김종화 기자]The movie & # 39; First Man & # 39; was the first humanity to tell the story of Neil Armstrong, who set foot on the moon.

First Man tells us that astronauts, one of the tasks everyone wanted, had to go through a very difficult process to get to space. They also celebrate their achievements as humans lose their lives by conquering the moon and many astronauts are killed. Although it is a product of the Cold War, the pioneering will of the universe at this time must be respected.

Until now, the space created by humans was just spinning around the earth. The reality is that I have not yet escaped the International Space Station (ISS), which floats 400 km above the Moon and Earth. NASA, NASA and others have not yet been able to come to Mars.

Why We can say that human security is not guaranteed. In other words, there is no certainty about the safety of astronauts on Earth and in other space environments. We must prepare for safe human activities using the information gathered through the unmanned space probe.

So what is the real threat of astronauts if humans are actually going to space exploration for a long time? NASA, which attempts to conduct human space exploration, has clbadified astronauts in five different ways.

NASA has stated that five factors, including space radiation, isolation, the gravity of the Earth and other environments and other clandestine environments, pose threats to astronauts at the time of flight. 39, space exploration.

"These threats interact with each other and can have a negative impact on the human body," NASA said. NASA ruled the appropriate test site as an ISS to identify this situation and explained the threats to the astronauts in favor of the ISS situation.

The biggest threat to astronauts is cosmic radiation. The ISS is located in the Earth's magnetic field, but the intensity of cosmic radiation received by resident astronauts from the ISS is ten times greater than that of the Earth. As the amount of radiation from the universe exposed to the more distant space, such as Mars, increases, the quality of various equipment, such as space suits, needs to be improved.

Spatial radiation exposure increases the risk of cancer and damages the central nervous system. For this reason, the ISS has installed dosimeters and radiation protectors to reduce the risk of exposure to cosmic radiation.

One of the threats is to live in a secluded space for a long time. NASA predicted that astronauts on Mars would have a sense of isolation hard to imagine. For this reason, you can not sleep properly, your health is degraded, and your ability to perform cognitive tasks and work may also be degraded.

Getting away from the land is also a major threat. At the furthest distances, the distance between Mars and Earth is about 400 million km. Even though it is located as close as possible, the distance between Earth and Mars is about 5760 km. Science and technology can now fly in three days to the moon, but it takes three years to reach Mars. If an astronaut is injured on the route and there is a shortage of medication or food in case of emergency, it is too much backward. It is far too long to recover resources and food on Earth.

The difference in gravity with the Earth also makes astronauts more difficult. The gravity of Mars represents three eighths of the level of the Earth. Osteoporosis is the oldest surviving astronaut in space. Almost no gravity prevents the formation of bone cells and significantly reduces bone regeneration.

"When astronauts come back from Mars, they have to check to see if their bones, muscles, and cardiovascular systems are functioning properly on Earth," NASA said. "He said.

Closed residential environments also pose a threat to astronauts. In an enclosed space, astronauts must pay attention to everything from the quality of air to microorganisms. We need to recycle not only oxygen, water and carbon dioxide, but also waste.

Astronauts must overcome these threats to the nearest planet. Is it possible to send humans to Jupiter or Saturn? Space X, developer of private spaces in the United States, is striving to achieve space tourism. Can I travel in space? When can you go?

Kim Jonghwa reporter [email protected]