July 20, 2017 Human Moon Day?

On July 20, 1969, mankind successfully landed on the moon for the first time. As astronaut Armstrong said in the words that will be recorded in the annals of human history, "It's one small step for a man." , but it is a big step for mankind." In order to commemorate the feat of mankind's successful landing on the moon, the international community sets July 20 every year as "Human Moon Day". Today's World Holidays will introduce this important day to you.

Q: What holiday is July 20, 2017? Answer: July 20, 2017 is Human Moon Day.

On July 16, 1969, Apollo 11 carried captain Neil Armstrong, command module pilot Michael Collins and lunar module pilot Edwin Aldrin. On July 21, 1969, humans first landed on the moon aboard Apollo 11. Armstrong and Aldrin became the first humans to land on the moon. Apollo 11 was the fifth spacecraft launched in the Apollo program, the third attempt to land on the moon, and the first spacecraft to successfully land a man on the moon.

The "Apollo 11" spacecraft carried three astronauts and set off from the Cape Canaveral launch site in the United States on July 16, 1969. The spacecraft was launched by a "Saturn 5" rocket and took 11 minutes. Then it entered a low-Earth orbit at an altitude of 185 kilometers. After orbiting the earth for one and a half times, the third stage of the rocket was activated, causing the spacecraft to leave the earth's orbit and enter an oblate elliptical orbit leading to the moon.

Three days later, the spacecraft arrived near the moon and accurately entered the orbit around the moon. After "Apollo 11" flew around the moon 13 times, the lunar module separated from the command module. Collins drove the command module to continue flying around the moon. Armstrong and Aldrin took the lunar module and began to rush to the moon.

During the descent stage, the lunar module began to slowly approach the moon and entered the planned landing area. The automatic control stopped within the last 2 kilometers of altitude. The astronauts controlled the speed and position of the lunar module through manual control and crossed a dangerous crater at an altitude of 150 meters from the moon. July 20, GMT At 20:17 on the lunar surface, the lunar module landed on the Sea of ??Tranquility on the lunar surface.

At 2:56 a.m. on July 21, the lunar module door of "Apollo 11" opened, and Armstrong was the first to step down the gangway, leaving the first human being on the moon. footprint. He said: "That's one small step for (a) man, one giant leap for mankind."

18 Minutes later, Aldrin stepped onto the moon. They inserted a metal commemorative plate on the moon, with a line of large characters engraved on it: "In July 1969 AD, people from the planet Earth landed on the moon for the first time. We are representatives of all mankind, and we come for peace."< /p>

The two astronauts spent 24 hours and 30 minutes on the moon, collected 28 kilograms of lunar soil and moon rock samples, and installed experimental devices such as a moon seismometer and a laser reflector. On the 22nd, the two men drove the lunar module to leave the moon, returned to lunar orbit, met Collins, and embarked on their return journey. On July 24, the spacecraft's return capsule splashed down into the Pacific Ocean, completing this epoch-making lunar landing flight.

Human landing on the moon is the first step taken by mankind to explore outer space. As Armstrong said, this is one small step for man, one giant leap for mankind. Human landing on the moon provides reference value for exploring lunar resources and colonizing Mars, and is of great significance to the history of human exploration of space.

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