2020-07-04

What if an astronaut cannot return to Earth after landing on the moon?

By ddzyx
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​From 1969 to 1972, NASA carried out successively 7 manned moon landing missions-from Apollo 11 to 17. There were 6 successes and 1 failure, and Apollo 13 failed to reach the moon.

During the flight of Apollo 13 to the moon, the oxygen tank on the spacecraft suddenly exploded, resulting in a serious shortage of oxygen and electricity. In desperation, the moon landing program had to be forced to terminate. After overcoming difficulties, the astronauts successfully returned to Earth.

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If the failure of Apollo 13 occurs during successful registration After the moon, astronauts cannot return to Earth on the moon, what should I do?

The moon is the fifth largest satellite in the solar system. Because the moon is locked by the tides, it always faces only one side toward the earth. There is no liquid water on the surface of the moon. The daytime temperature on the moon’s surface is as high as 130 degrees Celsius, while the night temperature drops to minus 170 degrees Celsius. The temperature difference between day and night is large. The moon’s atmosphere is very thin, almost in a vacuum, and cannot provide the oxygen needed for human breathing.

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The lunar environment is extremely harsh and it is difficult for astronauts to grow there Time to survive. Once the supplies are exhausted, the astronauts may face an embarrassing situation. If astronauts are stranded on the moon, are they likely to save themselves?

In”Mars Rescue”, the astronauts were not caught on the spacecraft returning to Earth, and were left alone on Mars. The astronauts depended on the food left in the cabin to survive, but soon faced a food shortage.

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After that, he began to grow potatoes with Martian soil, and achieved success. When the ground staff of the space agency learned that the astronaut was stranded on Mars, the space agency took a series of rescue activities in time and finally successfully took him back to earth.

So, can astronauts grow crops on the moon to achieve food self-sufficiency?

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Scientists found that these soils affected plants No harm, but the soil lacks nutrients. If certain technical means are adopted, it is possible to use lunar soil to grow crops. After Chang’e-4 carried seeds to the lunar surface in China, it was found that the seeds could grow under certain conditions.

However, even if you can grow crops on the moon, the results may be futile. If you don’t prepare a lot of food in advance, from the beginning of planting to maturity, you need to wait for a long time. I am afraid that astronauts lacking supplies will not even wait for the day when the crops are ripe.

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Astronauts can only save themselves Waiting for the timely rescue of the ground space agency. So, during the Apollo moon landing that year, did NASA prepare the Apollo spacecraft in advance for rescue at any time?

In fact, during Apollo’s manned moon landing, NASA was not prepared to go to the moon to rescue the rocket. If you rearrange a rocket to take off, it takes a long time to prepare. The interval between Apollo 11 and Apollo 12 is 4 months. Even if the progress is accelerated, it will take at least one month. The food in the manned spacecraft cannot sustain the astronauts for so long.

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For astronauts, during the space mission It is bound to be full of unknown and dangerous. NASA has already made preparations for astronauts on the moon that may not come back, and has prepared a speech for this.

But fortunately, the manned missions to the moon were all successful. Astronauts were not stuck on the moon, and the speech was ultimately useless. Even if Apollo failed to land on the moon on the 13th, it was”the most successful failure” and no astronauts were killed.