Armstrong was born in 1930. Before becoming an astronaut, Armstrong had a relatively rich experience.

In 1947, he received the "Holloway Plan Scholarship" named after the four-star U.S. Navy Admiral Holloway, and studied aerospace engineering at Purdue University. After studying for 2 years, he enlisted in the Navy and served for 3 years. , and then complete the last two years of college. During his last year in the Navy, he joined the Korean War. As a pilot, he received the Air Force Meritorious Service Medal, a gold star.

After retiring at the age of 22, he returned to college and achieved the best results in college. However, it seems that his college performance is not particularly good. His GPA (Grade Point Average) is 4.8, and his full score is 6, which is equivalent to 80 points on a hundred-point scale. Over the next 17 years of his career, he became an engineer, a test pilot, an astronaut, an official on the National Aeronautics and Space Advisory Council, and an official with NASA.

The mission of Apollo 11 that Armstrong took was to land humans on the moon. There were three astronauts on the spacecraft. Armstrong was the commander of Apollo 11. The lunar module pilot was Buzz O. Derling, the command module pilot was Michael Collins.

On July 16, 1969, Apollo 11 was launched by a Saturn 5 rocket. The spacecraft flew along the Earth-moon transition orbit for two and a half days before approaching the moon and entering a lunar orbit. Armstrong and Aldrin entered the lunar module, while Collins remained in the command module and continued flying around the moon.

At 20:17:39 UTC (Universal Standard Time) on July 20, 1969, the lunar module landed on the lunar surface. A few hours later, Armstrong stepped out of the cabin first, landed on his left foot, and said the famous words: "That's one small step for a man, one giant leap for mankind."

There are three interesting details. .

First, before the launch of Apollo 11, Aldrin believed that he should set foot on the moon first. However, during the simulation test, Aldrin had to climb over Armstrong before he could land on the moon first, which caused It was unnecessary trouble, so it was later decided that Armstrong would be the first to set foot on the lunar surface, thus making him an iconic hero.

Second, the two astronauts returned to the lunar module after staying outside for two and a half hours. When preparing to take off again, they discovered that their huge spacesuits accidentally broke the take-off engine. Ignition switch, they used a pen to trip the circuit breaker to ignite the lunar module.

The third detail is the most interesting, related to Armstrong's famous saying. The original text of this famous saying is "That's one *** all step for [a] man, one giant leap for mankind". The reason a is put in parentheses is because when this sentence reached the earth, no one heard the word.

If Armstrong did not say this letter, then this famous saying is a sick sentence, because man and mankind both represent human beings, and a man is a person. Later, some experts discovered after research that Armstrong actually said this letter, but it was not transmitted back to the earth due to static electricity. For the sake of low profile, Armstrong insisted that future citations have the a's enclosed in parentheses.

In the U.S. Apollo program, a total of 32 astronauts participated in the manned program, of which 24 left the earth’s orbit and entered the lunar orbit, and 12 completed walking on the lunar surface. Six people drove a lunar rover on the lunar surface. As an Apollo 17 astronaut, Eugene Cernan was the last man to set foot on the moon, in December 1972.

The United States never returned to the moon after 1972, but it did not stop exploring space.

After Armstrong stopped being an astronaut, he turned to teaching. Feeling that he had low academic qualifications (master's degree), he turned down teaching positions at other universities and taught at the smaller University of Cincinnati's Department of Aeronautics and Astronautics. After teaching for 8 years, he suddenly left the school without explanation.

He received his master's degree from the University of Southern California in 1970, when he was 40 years old.

Armstrong was an extremely low-key man. As a hero in the eyes of ordinary people, after learning that someone was selling his autograph, he was no longer willing to sign autographs for others. An interesting story is that the barber who had been cutting his hair for 20 years once sold his hair for $3,000, and he threatened to take him to court if the barber didn't donate the money.

This hero in space eventually lives on earth and makes the happiness of mankind on earth his career.