Two astronauts were sucked into a black hole, and the astronaut's extravehicular walk is usually described as one of the most dangerous tasks in space activities. They are faced with the test of bad space environment such as vacuum, strong radiation, weightlessness and sudden cooling and heating. Let's share two astronauts being sucked into a black hole.

Two astronauts were sucked into the black hole 1. It is false that two astronauts were sucked into a black hole.

As we all know, black holes are caused by the phenomenon when the planet is about to expand. Scientifically speaking, a black hole is a celestial body in the curvature of spacetime. It is too big for light to escape from its horizon. In other words, in front of a black hole, nothing can escape the fate of being sucked and strangled.

Then you can imagine that what these two astronauts said is completely false. People who can't escape can survive smoothly. Do these two American astronauts compare the light intensity? So from this point of view alone, this matter is completely false.

Let's take a look at the protagonist of this matter, NASA. Most mysterious events in the universe are basically related to NASA, but many of them are proved to be false in the end. These are nothing more than attracting attention or diverting attention.

So when you see these news, think about it carefully and you will know whether it is true or not. Only those superheroes in science fiction movies can survive in black holes, and superheroes don't exist at all, so this thing doesn't exist at all, it was invented by people themselves.

Black holes cannot be directly observed, but only their existence and mass can be indirectly known, which is also a very mysterious cosmic phenomenon at present. In the vast universe, there are many magical phenomena similar to black holes, such as the existence of white holes and wormholes, the formation of galaxies and so on.

There is no way to prove these magical phenomena at present, and scientists need to explore them themselves. I believe that these will be concerned by people for a long time to come, and I believe that these magical cosmic phenomena will eventually be discovered by people. At the same time, we need to pay attention to the fact that no matter what the outcome is, we should remain in awe of the universe, the world and nature.

Do black holes really exist?

Black holes are the hypothesis of many scientists on the earth that there is a strong gravitational carrier. The so-called black hole means that this star must be dark. Black holes are very attractive and can attract everything. Even the light from the source of life on the earth is completely attracted by black holes.

In the whole universe, if anything enters a black hole, there is no possibility of survival. Some people assume that black holes are the gateway to another universe, and they may enter another brand-new universe after being attracted by black holes. Of course, all theories about black holes are still hypothetical, and scientific and technological research is needed to uncover the mystery of black holes.

Two astronauts were sucked into a black hole. The dangers that astronauts may encounter in space are:

1. The sealed cabin or spacesuit (during spacewalk) was broken by space junk, resulting in oxygen leakage.

2. The space capsule broke down, which made the astronauts unable to sustain their lives and wait for rescue.

3. In the process of launching and returning, the launch vehicle or spacecraft fails, resulting in the failure of launching or returning (the spacecraft disintegrated, exploded, the parachute did not open, and it was unable to return due to serious deviation from the scheduled orbit). )

4, do not rule out being attacked by advanced life in the universe.

You may encounter cosmic radiation. The biggest threat in this respect comes from the flare explosion of the sun. This is a local violent explosion phenomenon of the solar atmosphere, which will instantly release electromagnetic radiation. In a few minutes to ten minutes, it can release a huge energy of 1020 ~ 1025 Joule, which is equivalent to the simultaneous explosion of tens of billions of giant hydrogen bombs.

Health protection:

Weightlessness is the biggest test for astronauts. He Xinxing, director of the Space Environmental Medicine Research Office of China Astronaut Research and Training Center, said that in the weightless environment of space orbit, blood will transfer to the head and upper limbs, and the regulation of human body fluids will change. Followed by cardiovascular problems.

In space, astronauts don't walk with their feet, but float with their arms. This can lead to muscle atrophy and osteoporosis.

During the flight, the ground support team will comprehensively use medical inquiry, basic physiological index examination, urine routine test and other means to carry out regular health assessment; Pay attention to strengthen microbial control in the cabin and allocate preventive and therapeutic drugs and related medical devices.

In addition, for the first time in this mission, a telemedicine support system was established, which solved the problem of astronauts' "seeing a doctor" in orbit through collaborative consultation between heaven and earth.

At the same time, a "space gym" was specially built for astronauts, equipped with protective equipment and sports equipment to minimize the adverse effects caused by weightlessness. For example, use a cuff to prevent discomfort such as head swelling and nasal congestion at the beginning of flight;

By using stretchers and bicycle ergometers to exercise and wearing penguin clothes to work, you can fully protect against cardiopulmonary decline, muscle atrophy and bone loss.

The so-called "penguin suit" is actually an exercise tool. In the state of weightlessness in space, human muscles will lose the stimulation of gravity and shrink. Wearing "penguin suit" can give people a fighting force, keep the continuous stimulation of muscle strength, and prevent muscle relaxation and bone loss caused by weightlessness. Stretchers increase the exercise of lower limbs and lower back muscles.

Astronaut system experts say that in general, astronauts will spend an hour in space every day to exercise.

The ground support team will also observe and evaluate the psychological state of the two astronauts during the flight and provide psychological support. Especially in the middle and late period, we will focus on observing and recording astronauts' emotions, fatigue, human-computer interaction, interaction between heaven and earth and interaction between heaven and earth.

Huang said that in this mission, the ground team provided astronauts with a psychological comfort system based on virtual reality technology. Through this system, astronauts can see their families, family scenes and familiar environments. The information exchange system between heaven and earth has been improved, so that astronauts can contact the ground at any time, send emails and communicate with relatives and friends in audio and video.

The astronauts themselves brought interesting songs and videos, including photos of their families. After a busy day, you can take out your own leisure time of 1 hour in the evening to listen or have a look. This is also a kind of psychological relaxation.

Two astronauts were sucked into a black hole. What are the conditions for astronauts?

1, basic conditions

Including political and ideological expression, flying skills, physical fitness and so on. Astronauts are required not only to have a healthy body and good psychological quality, but also to have a high degree of tolerance and pressure resistance to the space environment, as well as profound knowledge and superb skills.

2. The choice of clinical medicine

It is necessary to examine all parts and organs of the body in detail. The physical examination of selecting astronauts is very different from that of ordinary people. It will take nearly a month for the admission examination, and no one can be less. The medical examiner should not only see whether he is sick now, but also trace back whether he has potential diseases and hereditary diseases.

3. Selection of physiological functions

Mainly check the adaptability and stability of the central nervous system and respiratory and circulatory system to the special space environment.

4. Psychological function choice

Experienced psychologists will talk to clients, observe their behavior, understand their personality psychology and test their emergency decision-making ability.

5, special endurance selection

Through this stage of examination, people with organ diseases or dysfunction, people with psychological quality and intellectual defects, people with poor endurance and over-sensitivity to special factors can be excluded.

Manned space activities have strict requirements for astronauts' physiology and psychology. According to the space mission and its different requirements for all kinds of astronauts, space medical experts formulate corresponding selection items, contents and standards.

Generally, it includes basic qualification examination, clinical medical examination, physiological function selection, psychological selection, endurance and adaptability selection of special environmental factors, etc. The selection criteria and conditions for astronauts in different countries are basically the same, especially the requirements for physical fitness are the same.

There are many similarities between the selection criteria and methods of early astronauts in the United States and the Soviet Union. Astronauts are all selected from fighter pilots; The selection of astronauts is based on the selection of pilots; The required selection items are similar.