There is no launch site on the moon. How did the Apollo astronauts return to China?

Apollo moon landing program, with high thrust "Saturn V" carrier rocket to send spacecraft and astronauts into lunar orbit, which is understandable by most people; But after the astronauts landed on the surface of the moon, how did the astronauts leave the surface of the moon and return to China because there was no launch site on the surface of the moon? This makes many people don't understand, and then they suspect that the moon landing is fraudulent.

Let's take a look at the moon landing mode of Apollo's moon landing program. NASA chose the lunar orbital module. The spacecraft will include two main parts: the command/service module and the lunar module. In lunar orbit, the lunar module will separate from the command module and land on the surface of the moon. After completing the mission, the astronauts will use the return part of the lunar module to return to the lunar orbit to meet with the command module, and then return to Earth from the command module/service module.

The space of Apollo lunar module is about 6.65 cubic meters, 6.4 meters high and 4.3 meters wide, which can accommodate two astronauts and four supporting feet. It consists of two parts: the upper upgrading stage and the lower stage. The total mass of the lunar module is 15264 kg.

The descent stage in the lunar module includes lunar landing equipment, radar antenna, landing rocket engine, fuel needed for landing, as well as experimental package, mobile instrument vehicle, lunar rover, lunar camera, lunar tools and lunar sample collection box.

The upgrade includes hatch cover, reaction control system, radar and communication antenna, take-off rocket engine and fuel for returning to lunar orbit. Because the gravity of the moon is only about one-sixth of that of the earth, the small launch system on the lunar module can easily put astronauts into lunar orbit.

After the two astronauts return to lunar orbit, they will dock with the command module/service module. The astronauts will be transferred to the command module/service module, and the lunar module will be separated and abandoned. Then, they will be accelerated to leave the lunar orbit, return to the earth and enter the earth orbit. After adjusting the attitude and angle, the service module will be separated, and three astronauts will cross the atmosphere in the command module and land at the designated position waiting for rescue.

This is the step and node for astronauts to return to the moon in Apollo moon landing program.