Why not go to the moon again?
The first man landed on the moon in 1969, and the last one was in 1972, so it can be seen that there were plans to land on the moon again, but why has man not set foot on the moon since 1972?
In 1961, U.S. President John F. Kennedy ordered Operation Gulf to regain the lead in space, but it failed due to limited technology.
In order to "entangle" with the Soviet Union in space, Kennedy also decided to use a "hard-hitting" approach, that is, to use nuclear weapons, so in 1961 the United States planned to use nuclear weapons to land on the moon, what is this concept?
What will it affect?
In 1961, the United States decided to use nuclear bomb technology to land on the moon, and the first choice of nuclear weapons can create a huge flame with a diameter of hundreds of meters, can also cause a magnitude 6 earthquake, and can also create a flame mushroom cloud up to 2,000 meters.
The United States is somewhat worried about the use of nuclear bombs to land on the moon, so in 1961, the United States sent a nuclear bomb spy plane to monitor the actions of the Soviet Union, at that time, the United States was very worried about the progress of the Soviet Union's unmanned lunar landing program, the Soviet Union's unmanned landing program used the same program and rocket, the United States was worried that the Soviet Union would use nuclear weapons like itself, but the Soviet Union finally gave up the plan to land on the moon, due to technical reasons.
The United States thought that the Soviet Union would give up the moon landing and get nothing, but because of the failure of the United States in the Gulf operation, the Soviet Union did not want the United States to obtain the so-called space leadership, so in 1961, the Soviet Union conducted a reconnaissance of the Soviet Union's nuclear warhead defense system on the United States in 1960, and when it learned that the United States was going to use nuclear weapons to land on the moon, the Soviet Union instigated the mainland to use nuclear weapons to land on the moon even if the United States used nuclear weapons to land on the moon in 1961, and the reason given by the Soviet Union was that even if the United States used nuclear weapons, Nor can the United States send a man to the moon.
Why, then, was it known before 1959 that the moon was so dangerous that astronauts could not return from the moon when they arrived, given that humans could land on the moon?
What exactly is the question about the Moon?
In 1961, the United States planned a lunar landing plan against the Soviet Union, and the Soviet Union thought that the United States would conduct reconnaissance of the Soviet Union's nuclear warhead defense system in 1960, but when the rocket used by the Soviet Union was the "Energetic Dancer" rocket, and the United States used the "Sunflower" rocket, the Soviet Union did not monitor the United States' plan to send humans to the moon at that time, so the Soviet Union tried to instigate the mainland to carry out a plan to buy time for the Soviet Union.
Therefore, the Soviet Union adopted the "sedan chair" program, in 1958, the Soviet Union carried out rocket experiments, but failed, in October 1958, the Soviet Union successfully launched an unmanned spacecraft into space, this event inspired the United States even more, the Soviet Union wanted to land on the moon, the United States could not lose, so the United States could not wait to decide to explore the moon, because at that time the Soviet Union did not have astronauts to fly into space.
So the United States decided to use an unmanned spacecraft to explore first, on August 29, 1959, the United States launched the "Meteor" probe into space for the first time, the target was Mars, but in September, the United States and the Soviet Union broke out a cold war about nuclear weapons, so the United States decided to change the target to the moon, but when the exploration, on January 3, 1962, the United States launched the "Meteor" probe because it was too far away from the earth, has not sent back a signal, and finally was announced by the United States, the mainland's "moon program." The launch failed.
In April 1960, the Soviet Union conducted reconnaissance of the U.S. nuclear weapons system, and when the Soviet Union learned that the U.S. nuclear weapons system was used as a denger, it was brought to Germany, and in May 1961, the Soviet Union leaked this information to West Germany, which was even more vigilant in West Germany, which believed that this move would have a serious impact on the moon until 2004, when the United States planned to explore the moon again, just as the United States launched the rocket into space, just as the "Freedom" rocket went into space, the United States announced the suspension of the moon landing.
Hawking warned.
In 1961, when the Soviet Union conducted a systematic reconnaissance of the United States' nuclear warheads against the United States, the Soviet Union leaked the American plan to the mainland, and after the mainland learned the news, it warned the United States about the plan carried out by the United States, and the mainland believed that it was very stupid for the United States to carry out nuclear bombing of the nuclear weapons used by the United States. The mainland sent this warning to the Soviet Union, which also warned against the actions of the United States.
As for the nuclear weapons used by the United States, sailing to the moon and placing nuclear bombs everywhere, since the United States can sail, the Soviet Union does not believe that the United States cannot complete the Gulf operation, but in the end, the United States gave up using nuclear bombs to land on the moon for technical reasons, when the United States announced that the plan was suspended, the reason given by the United States was that "the plan was shot down by the Soviet Union", but Hawking also warned mankind, so will human landing on the moon really have an impact on the moon?
In 1969, the American "Apollo 11" astronauts "Armstrong" and "Eldrin" landed on the moon for the first time, and the whole world rejoiced to welcome the great glory, until 1972, the United States landed on the moon for the last time, until 2004, the United States wanted to land on the moon again, but was said by Hawking in a word, so what is the meaning of Hawking's "don't go to the moon"?
In 1961, the United States' plan for the moon landing was still leaky, and the Soviet Union was scouting the American plan at that time, so the American plan was just a plan.
In 2004, the United States plans to land on the moon again, this time for scientific exploration, human beings have never set foot on the moon since 1969 after landing on the moon, but for such a huge moon, human research is still not deep enough to grasp it, so the United States decided to explore the moon again, but Hawking warned mankind "do not go to the moon again", what is the meaning of this sentence "do not go to the moon again"?
Or back in 1959, the Soviet Union reconnaissance of the United States, the Soviet Union learned of the United States' reconnaissance plan for the moon, but also made the mainland frightened, in 1961, the two countries on the human moon landing a struggle, but in the end the Soviet Union still gave up landing on the moon, the United States on the Soviet Union's rocket system, serious study, but the United States plan is also a failure, just between the two countries after the "gunsmoke" gradually dissipated, the Soviet Union let the United States know that human landing on the moon will have an impact on the moon, not only the moon, Even the Earth warns humanity.
Until 2004, the United States wanted to land on the moon again, so it re-studied the rocket system used by the United States, until 2004, the United States re-inspected the rocket and re-launched it into space.
Epilogue:
On the whole, Hawking's warning to human beings, he is not against the human moon landing, on the contrary, he is very supportive of the human moon landing, but the moon landing again must be prepared, put human safety first, and the moon landing is not only a "spring dream" of the United States, human beings can try to land on the moon with rockets, but for whether there is life on the moon, etc., human beings can first use some unmanned landing, and then carry out human moon landing, and then for such a large moon, human beings can not be damaged at will.