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Because returning to the moon is also useless, it has been used to the fullest and the mission has been completed.
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As things stand, there is nothing new to study on the moon, and there is no need to return again.
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This is naturally someone's own idea.
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Because its mission is to leave the moon, it does not need to go back to the moon if it succeeds.
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This is mainly because in the current situation, returning to the moon is not very useful.
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Because there is no value in returning to the moon, there is no need to return to the moon.
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Why do you want to return to the moon, you can return when the collection is done.
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Because NASA has already completed its mission, there is no need to go back to the moon.
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The biggest reason for this is: lack of money! The total funding is not supported.
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Because "returning to the moon" has always been the wish of NASA and the wish of the entire earth, it is very difficult, so the torture for a very long time is not a technological regression, but the situation is changeable, and a variety of factors must be considered to continuously improve the quality of science and technology to ensure the success of the plan!
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It's not a technological regression. The project was cancelled in 2010 due to budget overruns and schedules, and R&D was restarted in 2011.
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The technology of the previously designed artwork is still stagnant, the funds are not enough, and the people and politicians have been debating the meaning of spending a lot of money to go to the moon again, and the moon landings of other countries have also put some pressure on NASA.
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People came back through the lunar module, and there happened to be a descent stage on the moon, which could be used as a launch platform.
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Because the gravitational pull of the Moon is not as great as that of the Earth, the speed of the vehicle is enough to help astronauts leave the gravitational range of the Earth and be captured by the gravitational pull of the Earth.
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It was the use of some scientific and technological means, and finally the rocket was readjusted and operated back, and it was returned to the earth through some physical phenomena in the moon.
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After waiting for all the astronauts to enter the service module from the lunar module, they will abandon the lunar module, leaving only the command module and the service module, and continue to return to Earth orbit.
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Would you be someone else wouldn't? You don't admit that mountains exist if you haven't seen them?
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It seems to be the fish that slipped through the net of the legendary 9-year compulsory education.
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According to reports, after the completion of the Chang'e-3 mission, the lander and lunar rover will remain on the moon forever. The lander works on the moon for a year, and the rover works on the moon for 3 months, which is their design life. "Of course, we want it to live up to that lifespan, and we want to live beyond that, just like Chang'e-2.
Wu Weiren, chief designer of China's lunar exploration program, said that Chang'e-2 was designed to work for half a year, and it is still working for more than three years, and it has flown to 62 million kilometers. Because Chang'e-2 is now an artificial asteroid orbiting the Sun, if nothing else, it could return to Earth's vicinity in 17 years.
That is, the design life of a spacecraft is one aspect, and on the other hand, a well-designed space vehicle will exceed this lifespan. Landers and lunar rovers may also outlive their design life.
The main problem with the lunar environment is the diurnal temperature: the absolute temperature is 300, 120 on the front side of the Moon and minus 180 on the far side of the Moon. "It will be quite difficult for the lander and the lunar rover to adapt to this change in the environment.
But we try to make them work for a long time, and after the work, we don't plan to get them back, and we can't get them back, because they weren't designed with that in mind. Wu Weiren said, "After the design life is over, it depends on their survivability." In the end, it must be after working for a period of time, because of the exhaustion of energy or other reasons, such as the damage of a component, then they will contribute their lives.
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The lunar rover released by Chang'e-3 is not planned.
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Return to lunar orbit by the lunar module, dock with the spacecraft, and finally return to Earth.
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Surely it won't work without rockets.
I think that although the physical environment of the moon is very similar to that of the earth, the main reason why it is not suitable is that there is not enough oxygen.
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