From the late 1960s to the early 1970s, the United States carried out seven manned moon landings, six of which were successful and only one failed. You should know that "Apollo" 11 Armstrong successfully landed on the moon, about 12 years after humans launched the first satellite

From the late 1960s to the early 1970s, the United States carried out seven manned moon landings, six of which were successful and only one failed. You should know that "Apollo" 11 Armstrong successfully landed on the moon, about 12 years after humans launched the first satellite, and only more than 8 years have passed since Gagarin and the US astronaut Shepard entered space. This seems incredible today.

8 years ago when Armstrong landed on the moon, the first American astronaut had just entered space

. After 50 years, when the United States decided to return to the moon, it almost tried its best to successfully launch the SLS rocket. The first time it was the unmanned moon-circling mission. It would not take until the Artemis II mission in 2024 to carry people, but it would not land on the moon. It would not be until the third time in 2025 that Armstrong's "miracle" was replicated.

US first astronaut Shepard also participated in the lunar landing training

and for the remaining 6 soft landings, the "Surveyor" 3, which landed on April 20, 1967, was confused by the descent radar by the highly reflected rocks, causing the lunar landing engine to fail to turn off at an altitude of 4.3 meters as set as the flight plan. The lander bounced twice after touching the surface of the moon, and the jumping height reached 10 meters and 3 meters, almost overturning. On July 14, 1957, when landing three days later, the radio signal suddenly broke off in the last 2.5 minutes of the descent phase and was lost forever.

The United States has successively launched 7 surveyor unmanned lunar landers

Surveyor's legs

In other words, only 3 of the lunar soft landings of the United States unmanned detectors were completely successful, namely "Surveyors" No. 1, 5, 6 and 7 respectively. The single weight of these lunar landing machines is only about 300 kilograms, which is almost equivalent to the weight of two "Yutu 2" lunar rovers. Then when it came to the "Apollo" mission, the United States suddenly jumped to a 25-ton service cabin, a command weighing about 6-ton and a nearly 15-ton lunar module , which combined to reach a 50-ton level. Is the span in the middle too large?

Surveyor 1

Secondly, among all 6 soft landings, only the "Surveyor" 6, which landed on Central Bay, , on November 10, 1967, reignited the engine for 2.5 seconds after landing, achieving the first takeoff on the moon in human space history. It only flew 4 meters away from the surface of the moon and moved 2.5 meters to the west, and then fell back to the surface of the moon again. Later, the ascender that took off from the lunar surface ignition weighed 4.5 tons, 300 kilograms to 4.5 tons. Isn't the gap a little far?

0 Surveyor 6 achieved the first time in history lunar takeoff

Apollo's lunar lander

. From "Surveyor" 6 to later "Apollo" 7 to 10 , the United States has never implemented a complete flight test from the earth to the moon and then returned to the earth from the moon. As a result, when it arrived at "Apollo" 11, it was successful directly. Its lunar module had never conducted any tests on the moon before, and it was done in one go.

Astronauts took a photo with surveyor 6 after landing on the moon

Because it has only a skeleton structure, it looks quite large, but the weight is only 300 kg

In comparison, in addition to Chang'e-3 , Chang'e-4 soft landing, and Chang'e-5 sampling and return, we also need to return the back of the Chang'e-6 moon in 2024, and find out the entire journey of the earth twice, and then add Chang'e-7 and 8 before we dare to start manned landing on the moon. Is it that we are too cautious, or is the jumping development in the United States too outrageous?

Looking at the Chang'e lander from such a distance is the first time

Chang'e 5 launch weight 8.2 tons

Of course, on the other hand, in addition to the return capsule of Chang'e 5, , slightly smaller, my country now has the technical strength of manned moon landing. If it were in the Cold War period, it might be possible to realize the Chinese dream of landing on the moon this year.The reason why we have to place the "small goal" of manned moon landing after 2030 is because we have greater ideals.

Return capsule is twice as large as it can carry people