How long can humans survive in outer space exploration and to other planets?

Unable to survive. Because there is nothing in outer space, we can't do without oxygen and water.

Barely able to survive for more than five minutes. The living environment of other planets is too harsh for human survival.

At present, if we go to other planets, we may not survive for a few days, because these environments can provide too little material for human beings, so it is difficult to survive.

If humans go to other planets, they may survive for a month. The human body is still very fragile, in addition to eating and drinking, the rest has to rely on willpower to guard, and only with willpower can it live.

Human beings can survive for a long time, as long as the development of science and technology can keep up with the speed of interstellar migration, and the supply can quickly reach the immigrant planet, human beings can create glory like immigrating to the American continent.

Of the planets currently known, humans are completely incapable of surviving without the help of extracorporeal devices. Because these planets have absolutely no signs of life, no fresh water, air, and food necessary for human survival, they can't survive a day.

In total, more than 1,000 human beings have carried out more than 500 astronauts in space. So far, China has carried out seven manned space missions, with 17 people and 12 astronauts in space.

China's 12 aerospace heroes are: Yang Liwei, Fei Junlong, Nie Haisheng (3 times), Zhai Zhigang, Jing Haipeng (3 times), Liu Boming (2 times), Liu Wang, Liu Yang, Zhang Xiaoguang, Wang Yaping, Chen Dong, Tang Hongbo.

Space accidents. In the history of human conquest of space, there have also been many astronauts who have sacrificed their lives for the space cause. So far, a total of 22 astronauts have been killed in manned space accidents, including 16 Americans, 5 Russians (Soviet) and 1 Israeli.

Two of the largest space accidents, the U.S. Space Shuttle Challenger on 28 January 1986 and the Space Shuttle Columbia on 1 February 2003, killed 14 astronauts.

According to statistics, more than 500 people from more than 30 countries have been to space, and Yang Liwei is the 413th person in space, but some people have been to space many times. So now, the number of people who have gone to space is more than 1,000. The United States is the first, Russia is the second, and many other countries, including Germany, France, Japan, and even Mongolia and Vietnam, have people who have gone to space, all on the American space shuttle or the Russian Soyuz spacecraft.

At present, China is the third country in the world that truly has the ability to send people into space.

The sky refers to the cosmic space outside the Earth's atmosphere, the entire space outside the atmospheric space. Physicists divide the atmosphere into five layers: the troposphere (sea level up to 10 km), the stratosphere (10 40 km), the mesosphere (40 80 km), the thermosphere (ionosphere, 80 370 km) and the outer atmosphere (ionosphere, above 370 km).

About 3.4 percent of the atmosphere above the Earth is in the troposphere and 97 per cent below the stratosphere, the outer edge of which is the maximum limit for aircraft to fly with air support. Some high-altitude rockets can enter the middle layer. The lowest orbit of an artificial satellite is within a thermolayer, and its air density is 1% of the Earth's surface.

Air continues to exist at altitudes of 10,000 km, and there are still airborne particles even at altitudes of 100,000 km. From a strictly scientific point of view, there is no clear boundary between airspace and outer space, but rather a gradual convergence. The Scientific and Technical Subcommittee of the United Nations Committee on the Peaceful Uses of Outer Space noted that it was not yet possible to come up with precise and lasting scientific criteria for delineating outer space and airspace.

In recent years, there has been a trend towards the minimum altitude of satellites off the ground (100,110) kilometres as the minimum limit for outer space.

60 to 90 minutes.

It takes 60 to 90 minutes to get from the ground to space. The orbital height of the spacecraft is small relative to the radius of the Earth, so the time from the ground to space can be divided by the circumference of the Earth.

1. The second cosmic velocity, that is, 60 to 90 minutes. The altitude of space is from the surface of the earth to an altitude of more than 100 kilometers, and as the altitude increases, there is less and less air. About 75% of the atmosphere above the Earth is in the troposphere and 97% below the stratosphere.

The density of air in the thermosphere is 1% of the Earth's surface, and air continues to exist at an altitude of 10,000 kilometers in outer space, and there are still air particles at an altitude of 100,000 kilometers. Therefore, there is no clear boundary between airspace and outer space.

Probably a few minutes.

Space is a vacuum environment, there is no oxygen present, and human beings die in a few minutes without oxygen.

In addition, too low air pressure, although it will not cause instant damage to the human body, but the human lungs are very fragile, once exposed to space, the air pressure will first cause damage to the lungs, which may cause instant death.

One second. Because space is a state of vacuum, there is no pressure, so if a person is exposed to space, at most for a second, it will be due to too much pressure in the body.

Without the protection of equipment, human beings will die quickly due to extreme low temperatures and oxygen-free environment, and they will not survive at all.

The longest time humans have spent in outer space has been achieved in space labs. There is not much data on the physiological and psychological changes of humans in the case of prolonged solitude, so it is not clear how long humans can stay in outer space.

The world record for the longest total stay in space (or, to be more precise, the world record) was set by Russian cosmonaut Sergei Krikalev, who spent a total of 800 days in Earth orbit in six different missions. That record will soon be broken, and by the time Padalka returns to Earth in September, his total time in space will reach 878 days, far more than Krikalev. The one-year stay will be the first in the history of the ISS, but four other Russian cosmonauts have already achieved more than a year of space flight, having spent between one and 14 months on the Mir space station in the 80s and 90s.

Medical experts have come to the conclusion from the large number of physical tests carried out by astronauts: it is best for people to stay in space for 90 days and 120 days, so that after returning to the earth, they can go back to space after a period of recovery, and if they stay in space for too long, they will cause sequelae and will not return to normal for life.