This is a small step for a man, but a huge leap for mankind.

Sunday, July 20, 1969, 4:17:42 PM EDT. Houston replied, "We support your action." They put on spacesuits worth three hundred thousand dollars and reduced the pressure in the lunar module. Then, with his back facing outward, Armstrong slowly began to descend the nine-step ladder. On the second step he pulled a rope and turned on the television cameras, allowing half a billion people to watch his careful descent onto the desolate lunar surface.

As his No. 9 and a half B boots touched the lunar surface, he said: "It's a small step for a man, but it's a giant leap for mankind. "This is 10:56:20 p.m. He shuffled up and down the ground. He said, "The surface of the moon is fine powder, and it stuck to the soles and uppers of my shoes layer by layer like charcoal powder. I stepped on it less than an inch deep, maybe only an eighth of an inch. , but I can see my footprints on the sand-like ground."

Extended information:

The first manned moon landing was by the "Apollo 11" spacecraft. Completed. There were three astronauts on board the spacecraft at the time. When the spacecraft separated from the third stage of the Saturn 5 rocket and flew along the transition orbit for 2.5 days, it began to approach the moon. At this time, the main engine of the spacecraft service module decelerated, allowing the spacecraft to enter Orbit around the Moon.

Then, two astronauts entered the lunar module and drove the lunar module to separate from the spacecraft. At this time, one astronaut in the spacecraft command module continued to drive the spacecraft to orbit the moon, while the other two The astronauts landed on the moon in the lunar module. After landing on the moon, astronauts collected rocks and soil (22 kilograms), deployed solar arrays, and installed moonseismometers. After the mission was completed, they took the lunar module's ascent stage back to lunar orbit, docked with the spacecraft, and finally returned to Earth.

From November 1969 to December 1972, the United States successively launched "Apollo" 12 to 17 spacecraft, except for "Apollo 13" which did not land on the moon for some reason (the astronauts returned to the ground safely ), and the other five spacecrafts all successfully landed on the moon. The astronauts of the "Apollo" 15 to 17 spacecraft also drove lunar rovers on the lunar surface to collect rocks.

Astronauts drilled three meters of lunar rock core on the moon and found as many as 57 layers, each layer representing a meteorite impact. They also measured the heat flow emitted from the moon's interior... "Apollo" Project Extremely spectacular, it excited the hearts of countless people and made the millennium dream of manning a manned moon landing a reality.

Baidu Encyclopedia-Man’s first moon landing