As early as 196 1, US President Kennedy announced to the world: "The United States will send an American to the moon and send him back to the ground within ten years." Since then, the ambitious "Apollo moon landing plan" of the United States has been implemented.
The Apollo moon landing plan is divided into three steps: the first step is called "project mercury", which sends astronauts into space to test people's ability to move in space; The second step is called "Gemini Plan", which has two main purposes. One is to test the physiological problems that may occur when people stay in space for a long time, and the other is to test the docking of spacecraft in space, thus laying the foundation for landing on the moon. The third step is "Saturn Plan", that is, to build a powerful rocket that can send manned spacecraft out of the earth into the orbit of the moon, and finally complete the moon landing plan.
Although the Apollo program is backed by powerful technology, the whole implementation process is extremely bold and risky. 1967 65438+1On October 27th, when the first Apollo spacecraft was doing a simulation experiment, its capsule caught fire and three astronauts were killed. To implement this plan, the government mobilized more than 400,000 people, about 20,000 companies and research institutions, and 120 universities, costing 25 billion US dollars. After paying a huge price, two astronauts were finally sent to the moon on July 20 1969. After the completion of the Apollo program, the United States has carried out five missions to the moon, and 12 astronauts successfully landed on the moon.
Apollo moon landing program is of epoch-making significance in the history of human civilization. It brought human civilization into the outer space for the first time and showed the great achievements of human civilization. Since then, the era of human outer space has begun.