Rebirth of science and technology academic master

finally!

Time always flies by very quickly. When the time comes for the five astronauts to leave the lunar surface, the five astronauts salute the bright five-star red flag that is planted tightly. This bright five-star red flag and The initially completed scientific research station represents evidence that the Chinese people have arrived on the moon. This is ironclad evidence that China has succeeded in manned landing on the moon. No one can question it!

The door of the scientific research station has long been closed, waiting for the next time Chinese astronauts visit the scientific research station again and open the door!

The five astronauts passed through the ramp one after another and returned to the lunar module. Then the ramp was retracted. Liu Yang pressed the button and closed the door of the lunar module.

"Report to the commander, ground command center. The five of us have returned to the lunar module. The lunar module door has been closed. After checking, everything in the lunar module is normal. No abnormalities are found. It can be started at any time!" Liu Yang was inspecting the lunar module. Finally, report to the command module and ground center at the same time!

"Agree to start!"

"Agree to start!"

Nie Haisheng in the command module and the ground command center both issued consenting instructions.

"5!"

"4!"

"3!"

"2!"

"1"

"0!"

"ignition!"

As the ignition command was issued, flames were shot out from the nozzle of the lunar module!

This time, it was the engine of the lunar module that ignited!

Because the gravity of the moon is much smaller than that of the earth, only about one-sixth of that of the earth, the power from the engine can easily push the lunar module into the sky, easily get rid of the constraints of the moon's gravity, and return to the lunar orbit.

Then the lunar module and the command module changed orbits at the same time. Then at the set orbit and the set location, the lunar module and the command module flew in parallel in the same direction for a period of time, then slowly approached, approached, and then Get close and finally complete the docking.

".This is the 'Chang'e' spacecraft. The lunar module has been docked successfully. Please ask for instructions on the next step!"

In the ground command center, the commander-in-chief of the manned lunar landing looked solemn and immediately ordered: "This is the ground command center. After hearing the order, abandon the lunar module!"

"receive!"

After receiving the order from the ground command center, the operation was carried out. The lunar module was abandoned, and the astronauts, equipment, and supplies inside had already been transferred to the command module. For the current Chang'e spacecraft, returning to Earth safely is the top priority. Although the lunar module is important, now is not the time to take it back to Earth with it. Maybe in the future, the technology will be further improved and we will be more confident. Only then can we return to Earth with the lunar module.

Now, abandoning the lunar module is the best option!

Of course, the lunar module is not abandoned at will. In fact, there are preset programs on the lunar module. After being abandoned, the lunar module will orbit the corresponding orbit and function as a satellite.

This can be regarded as taking advantage of it as much as possible!

"This is the 'Chang'e' spacecraft. The lunar module has been abandoned. Please ask for next instructions!" the 'Chang'e' spacecraft sent back a message.

"This is the ground command center. In 20 minutes, fire up and return!" the ground command center issued an order.

The command module does not mean that the lunar module can be ignited and returned at any time after abandoning the lunar module, but that it needs to follow the corresponding procedures and return at the most appropriate time. Qin Yuanqing has already calculated all this, including the ground command center, monitoring center, space The station's quantum communication satellites, navigation satellites, and monitoring satellites all feed back the situation of the command module to the ground command center at any time.

In the entire ground command center, every engineer looked solemn, because the next step was the last step of the manned moon landing project, returning from the moon to the earth!

Only by returning safely to Earth can this manned moon landing mission truly be a complete success!

If this step fails, then I'm sorry, the manned moon landing mission is only half the success. In the final analysis, it is a failure and a huge aerospace disaster!

As the time came to the specified time, after the 'Chang'e' spacecraft received the order from the ground command center, the engine began to emit sparks, pushing the 'Chang'e' spacecraft to begin to accelerate, continuously changing orbit, and then the speed quickly reached 2.4 With a lunar escape velocity of kilometers per second, it successfully entered the planned Earth-moon transfer orbit.

After entering the Earth-Moon transfer orbit, the plasma engine began to continuously emit sparks, constantly accelerating the Chang'e spacecraft. Although the acceleration per second was very low, it could not withstand over time, and the acceleration it gave was very objective!

In the middle and second half of the Earth-Moon migration orbit, the plasma engine began to perform reverse injection, but it was slowing down.

One of the tasks of this manned moon landing project is to implement the practical application of the plasma engine. Although experiments were carried out in the previous three times, they were not actually used in manned missions. This time it is a practical application to provide data support for the subsequent improvement and optimization of the plasma engine.

Compared with traveling from the earth to the moon, it only took two days to return from the moon to the earth, which saved one day!

After reaching the Earth's orbit, the 'Chang'e' spacecraft did not immediately enter the atmosphere. Instead, it moved around the Earth in a geosynchronous orbit. Then, after one orbit around the Earth, when it was not far from the 'Tiangong' space station, the 'Chang'e' spacecraft The service module of the spacecraft began to detach, and the service module was slowly approaching the Tiangong space station, constantly approaching, and then slowly completing the docking.

The supplies and equipment in the service module will be left to the Tiangong space station! The space of the Tiangong space station can also be further expanded. In the future, one more astronaut can enter the Tiangong space station!

If it were the United States, they would definitely choose to abandon the service cabin. But China is different. In the past, China was used to living in poverty. It took three years of sewing and three years of sewing and another three years of sewing. Although now there are more funds and more money, what can be used will not be discarded easily, but will be used as much as possible. utilization.

After separating from the service module, the Chang'e spacecraft finally changed its orbit and approached the edge of the atmosphere!

At this moment, the 'Chang'e' spacecraft successfully appeared at the boundary of the atmosphere, suddenly attracting the attention of the world again. The heartstrings of space centers, space enthusiasts, and the entire Chinese people around the world were all affected by that spacecraft. With.

If manned landing on the moon is a marathon in sports, then this is the last 100 meters of the marathon.

Successfully landing on the lunar surface is indeed something to be proud of and truly remarkable. But whether the fruits of victory can be successfully brought back to the surface from the moon is the key to declaring final victory!

Whether this manned moon landing mission is a complete success or not depends on this!

"This is the Chang'e spacecraft. We have successfully entered the return orbit!" In the command module, Nie Haisheng contacted the ground command center and said in a calm voice: "We will make contact with the atmosphere in 5 minutes!"

"Received in Beijing, I wish you good luck!" The voice of "Received in Beijing" from the Beijing Flight Control Center was transmitted to the Chang'e spacecraft, and also spread throughout the world!

Five minutes later, the Chang'e spacecraft came into contact with the atmosphere and then entered the atmosphere. The friction between the high-speed fall and the atmosphere caused the temperature to rise sharply, as if it was on fire.

When it descends to a certain height, the Chang'e spacecraft abandons the protective cover and opens the speed parachute. When it descended to a certain height, the parachute was abandoned, and after flying for a while, the parachute was opened. Soon the command module of the 'Chang'e' spacecraft successfully arrived at the earth and landed at the predetermined location - the Inner Mongolia prairie!

At the first moment, the helicopter took off from different directions, carried out warning, and flew towards the landing place of the command module. In less than ten minutes, it had arrived at the landing point.

One by one, heavily armed soldiers descended from the helicopter to provide warning, while the helicopter hovered in the sky.

After a while, the vehicle drove over.

After everything was ready, the door of the command module was opened, and the six astronauts walked out of the door one after another. The first person to walk out was none other than Nie Haisheng, the commander of the Chang'e spacecraft. He turned to everyone. Wave and salute.

The surrounding soldiers, reporters, and medical staff all saluted the six astronaut heroes, expressed their high respect for the six heroes and warriors who landed on the moon, and welcomed the triumphant return of the six aerospace heroes with the highest etiquette. !

The medical staff then conducted a preliminary physical examination of the astronauts, and then took the astronauts away. After returning to Earth, they will undergo a comprehensive scientific examination until it is determined that there are no problems before they can leave the medical center.

From the moment the Chang'e spacecraft successfully landed on the grasslands of Inner Mongolia, the mission of the ground command headquarters in the capital ended. Everyone celebrated crazily, cheered, applauded, and hugged each other.

Until this moment, the manned moon landing mission was considered a complete success.

After a simple celebration, the engineers and technicians working here either returned to the lounge to take a nap, or fell asleep directly on the work table.

After all, many of them have been at their posts for 24 hours. Some of them have even been at their desks since the rocket was ignited and launched. They have food and accommodation here without even going home!

But now that the manned mission to the moon has been a complete success, they can relax, have a good sleep, and go home to be with their families. For a while, they will have a week-long vacation!

But the command center is relaxed, but some departments are facing busy times. For example, the medical center has to conduct a comprehensive examination of the six astronauts to ensure their health. Every astronaut is a valuable asset of the country.

For example, some research centers need to study samples brought back from the moon. After all, the lunar soil, ores, etc. brought back by previous lunar exploration projects are not as good as what people took in person this time.

Of course, the most important thing is helium 3. The helium 3 extracted in 3 days was brought back to the earth. These helium 3 will play a vital role in the miniaturization of controllable nuclear fusion and will also play a role in aerospace aircraft. plays a key role.