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After noticing this change, Xu You immediately notified the staff of the control center to inform the two astronauts of this order.

Immediately, the two astronauts in the picture stopped their progress and began to wander around.

"In this area just now, the concentration of lunar dust is too high. If we stay in this area for a long time, it will pose a certain potential danger to our astronauts." Xu You said.

Even though our space suits are already very safe, Xu You doesn't want them to take this risk.

Unlike dust on Earth, lunar dust is a very dangerous substance.

They are small in size, like powder, but very hard. Once they accidentally enter the spacesuit, they will have a serious impact on the astronaut's body.

When the concentration of lunar dust is too large, its risk factor may exceed the critical value of the space suit, causing a certain degree of penetration into the space suit.

"Sure enough, there are indeed some unexpected risks on the moon. What the Sam space agency told me is not all alarmist talk." Xu You said.

However, Xu You feels that this may not be directly related to whether it is on the far side of the moon.

According to the existing data, the back of the moon is an area where there is almost no electromagnetic interference from the earth, and it has a large amount of efficient and pollution-free energy.

If these resources on the moon can be fully utilized, within tens of thousands of years, human beings will not need to worry about resource issues.

After testing, the two astronauts bypassed the area with excessive concentration of lunar dust and continued to move forward.

The host just learned the news and explained it to the audience.

"Our astronauts have just encountered an area with a high concentration of lunar dust, so they changed their direction. Compared with the dust on the earth, lunar dust is much more harmful and may cause the disease 'moon hay fever' .If we want to build a home on the moon in the future, the moon dust problem must be solved."

After bypassing the high-concentration dust area, the two astronauts began to measure the acceleration of gravity on the moon.

"Everyone knows that the gravity on the moon is very low, only about one-sixth of that on the earth. Every ordinary person will become a good athlete after arriving on the moon."

At this time, Sui Shihuan bent his knees and leaped high, directly jumping several meters high, which amazed the audience.

After intuitively feeling the low gravity on the moon, the two astronauts took out the experimental equipment and began to conduct rigorous scientific experiments.

"After rigorous measurement, the acceleration of gravity here is 1.618m/s. If you have the opportunity to weigh yourself on the moon, you will be the lightest in history. However, your mass will not have any changed, only the gravity changed."

Except for a few small dangers, all the tasks of the astronauts were completed in a very safe situation.

Even so, in the end the two astronauts did not rush to the far side of the moon, an area full of unknowns.

"Old Xu, why do you think the Sam people suddenly warned us not to go to the back of the moon at this time?"

Taking advantage of the break in work, Hu Shucheng found Xu You and asked Xu You about it.

"On the one hand, it is because there are indeed many dangers. In addition to the moon dust that astronauts have experienced, it also includes moonquakes, meteorites, electromagnetic radiation, etc. The degree of particle radiation on the back of the moon is hundreds of times that of the front. Protection mechanisms like the ozone layer. Even though our spacesuits take this into account, try not to take that risk lightly."

"What about the other side?" Hu Shucheng continued to ask.

"On the other hand, it's something they don't want us to know. On the back of the moon, there may be a lot of substances that don't exist on the earth, as well as some excellent resources. When their plan to land on the moon is blocked, they must want to let us know. The later we discover these secrets the better."

"So, we really gave up exploring these secrets?"

"No, it was their reminders that made me want to understand these secrets faster. I will definitely discover these secrets when I land on the moon next time."

Xu You didn't explain his detailed plan, but judging from the expression on his face, Hu Shucheng also knew that Xu You was very sure about this matter.

...

A few days later, the two astronauts ended this stage of exploration of the moon and were ready to return.

This time, the astronauts not only erected a red flag on the moon, but also completed a number of scientific experiments and collected hundreds of kilograms of geological samples.

With these precious resources, it will be of great help to our lunar exploration work.

With the imminent return, the live broadcast of the moon landing project has reached a new high point.

"This time our two astronauts' exploration of the moon has been completed, but the entire mission is not over. Next, the most important thing is that the three astronauts can return to Earth safely and bring back precious lunar samples .”

In addition to the attention paid to the moon landing project itself, the safety of the astronauts is also a matter of concern to everyone.

In addition, even though we have obtained some samples on the moon, research on the moon is still in its infancy.

The hundreds of kilograms of lunar samples collected this time will have a qualitative leap in our research work.

After getting ready, Sui Shihuan pressed the return button of the lunar module.

Immediately afterwards, the lunar module rose into the sky and will reunite with Xingkong-1.

All the orbital kinematics constraints, as well as the details of various orbit changes and docking, have been rigorously calculated by Xu You and others.

Just wait for the lunar module and Xing Kong No. 1 to successfully dock, and then they can return to Earth together.

Among them, the most challenging process is the docking of the lunar module and Xingkong-1.

The various technologies involved are very complex, and the requirements for calculation accuracy are also very detailed.

It is no exaggeration to say that the accuracy of the docking of the spacecraft needs to reach the millimeter level to ensure the safety of the docking.

If there is a slight error, it may lead to the failure of docking.

Unknowingly, the lunar module has entered the orbit of the moon, and gradually shortened the distance from Xingkong-1.

"From the perspective of the camera, the lunar module and Xingkong-1 seem to be stationary, but in fact, at this moment, their speed relative to the moon is as high as one kilometer per second. Under such high-speed running conditions, it is necessary to maintain such It is not easy to get close, not to mention that they are approaching at a very slow speed."