The dinner party ended soon, but Liu Xuan and the others also roughly understood the Federation's current development of the aerospace industry, and they also guessed some things, such as the current earth is not very safe.

The Federation's attitude towards the current construction of spaceships by private enterprises is neither for nor against it, as long as you have the ability, although the development is fine, the Federation's earth defense system will not be aimed at its own people.

In fact, what makes Liu Xuan even happier is that the Federation has allowed people to explore wormholes freely, that is to say, as long as they have the ability, they can go to explore next to the wormhole, as for the crossing of wormholes, the Federation has not explained carefully in this regard, maybe the Federation thinks that the current technology is still not up to the wormhole crossing. Liu Xuan still has to figure out this aspect, which is also very important for his plan, if the Federation does not allow it, he can only find a way to avoid the blockage of the Federation's many detectors.

This is also very difficult for them, there are no detector experts among the four of them, if they want to know more about detectors, they have to recruit new personnel, but this is also very difficult, there are detector experts in the company. The main problem is that Liu Xuan doesn't want his plan to be leaked, after all, crossing the wormhole is too crazy, no one knows what is on the other side of the wormhole, and Liu Xuan only has his own general guess.

However, Mr. Shen's other words also attracted Liu Xuan's special attention, that is, the Federation's Earth Defense Program, the Earth Defense System built. According to Mr. Shen, it was only a prototype built ten years ago, and it has been built by the Federation itself, without the participation of other companies, and at this rate, it will take at least 30 years to successfully build it.

Originally, the Federation didn't seem to be panicking, but about seven years ago, the Federation suddenly issued a convening order. Other enterprises were allowed to join in the establishment of the Earth Defense System, and at that time, the Transwarp Company already had a certain scale, coupled with the advanced nuclear power propulsion system, and was also invited to participate in the construction of the Earth Defense System, mainly including the construction of the Earth's low-earth orbit space station and the surface base of the moon.

Mr. Shen also knew some other things, because many of the Federation's nuclear propulsion systems were provided by Transwarp, which also let them know more insiders, that is, the Federation ordered a lot of long-range nuclear propulsion systems many years ago, and the goal at that time was to be able to fly stably to the vicinity of the Kuiper Belt.

When he first heard about this incident, Liu Xuan was very puzzled, not to mention that according to the current propulsion system, even if it is a new nuclear propulsion system in Liu Xuan's hand, it will take more than ten years to get close to the Kuiper Belt, not to mention, there is nothing outside the Kuiper Belt, which is not in line with the interests of the Federation.

On the whole, there is no interest in the federal launch probe close to the Kuiper Belt, which is a number of frozen stones, even if it has very valuable metals, it is not worth the loss to transport them back.

Then there is only one possibility left, suddenly speed up the construction of the defense system, they may have found something, and those things make the Federation very nervous, which accelerated the establishment of the defense system.

"Is the Dark Forest Strike finally here? But why is it happening now, according to the calculation of time, if there is really a blow, it should appear again. However, the agreement of that high-level civilization also feels like there is no Dark Forest Strike on the surface, what is going on? Liu Xuan's heart was already filled with countless doubts.

Liu Xuan had a hunch that his plan should be postponed, regardless of whether there was a blow from the dark forest, and now the solar system, or to be precise, the earth was threatened by outer space.

When they returned to their research room, it was already very late, and they weren't talking too much, and the four of them were sleepy to death, and they didn't want to talk about anything now, they were all ready to go to bed directly.

At this time, a dramatic scene appeared, Wang Meng didn't want to sleep in a special place, there was no bed for him in the research room, as a last resort, Liu Xuan could only let Wang Meng squeeze together with him. Originally, it was a one-person bed, and two people were crowded, so it can be said that this was the most uncomfortable time for Liu Xuan to sleep.

It was for this reason that Liu Xuan didn't sleep well all night, and Liu Xuan was the first to wake up. At this time, the sun had just risen in the east, and the deep darkness was gradually being forced back, and Liu Xuan once again felt the beauty of the light.

What made Liu Xuan most angry was that Wang Meng slept very comfortably at this time, and Wang Meng, who occupied most of the bed, was snoring and dreaming at this time, which made Liu Xuan more and more angry.

Liu Xuan angrily left his research room and walked to the first floor, he couldn't do any research here, it was better to have breakfast first, Liu Xuan actually knew that he couldn't study at all now, and yesterday's events still had a great impact on him.

When I came to the first floor, I didn't expect that Qin Ming and Xuanmu were eating their breakfast at this time, and there was also his share on the table, Liu Xuan was also very strange, these two people were sometimes very sleepy, why did they get up so early today.

"What did you think of Mr. Shen's words yesterday?" Qin Ming has never been a person who likes to go around the bend, and when he saw Liu Xuan coming to the first floor, he also asked directly at Liu Xuan.

Xuan Mu also stopped carrying food into his mouth, and stared closely at Liu Xuan, who had just appeared, and he also wanted to know Liu Xuan's opinion.

Liu Xuan smiled slightly, but this smile was very reluctant no matter how you look at it, and then slowly walked to his food, took a bite, and said slowly: "It's the same as you think." ”

They are not stupid, after hearing yesterday's words, they are naturally able to predict what is happening in the solar system, they are not sure of their own conjectures, so they want to listen to other people's opinions. Liu Xuan also has reason to believe that even Wang Meng, who is still asleep, can roughly guess what happened.

"What are we going to do?" The two of them also knew that Liu Xuan was thoughtful, and at this time, they also wanted to hear Liu Xuan's opinions and opinions, and most importantly, what to do.

"Yesterday, Mr. Shen also said that our Star Ring Company has a lot of exploration satellites, the farthest has reached the orbit of Jupiter, but it is still not enough, we need a detector that can observe the Oort Nebula." Liu Xuan put down the food in his hand, stared at the eyes of the two of them tightly, and said very firmly.

"What do you mean?" Xuan Mu actually didn't know much about space, and suddenly, he couldn't understand what Liu Xuan wanted to do.

"If our guess is correct, then why would the Federation move closer to the Kuiper Belt probe? Then we can boldly guess that our enemy has already passed through the Oort Nebula! My purpose is to find out if our conjecture is correct, to know that this is a secret of the Federation, and it is impossible to count on what the Federation tells us, in that case, we will find out for ourselves! "What Liu Xuan said is categorical and unquestionable.

"You mean, track?!" Qin Ming almost understood what Liu Xuan meant, and immediately shouted out in disbelief.

"Yes, it's the track, the most the current federal probes are to observe the Oort Nebula, since they discovered this matter, then it should be the conclusion drawn by observing the Oort Nebula." Liu Xuan nodded.

"What's a track?" Xuan Mu listened to it very puzzled, he had heard this word for the first time.

"To put it simply, the Oort Nebula is actually a large number of cosmic dust gathered together, affected by the solar system, like a spherical star, wrapping the solar system in it, once the object with a few fast velocities passes through these cosmic dust, it will temporarily form a blank area, the amount of cosmic dust in this area will be greatly reduced, compared to the surroundings, this place is like a white dot on black paper, this is the track. It can prove that there are objects that have crossed the Oort Nebula. Liu Xuan's explanation is also quite popular.