"For the sake of the shape fleet far away in the Oort Nebula, it really needs to be as soon as possible, according to their speed, it will be possible to reach the Kuiper Belt in at least seven years." Liu Xuan nodded, indicating that he knew.

"But correspondingly, there are other problems, such as people's livelihood problems, and as interstellar spending intensifies, the funds for the ground are reduced. The consumption of the federation every year needs to be announced, and the current people do not know what is happening, and they do not understand the expenses of the federation. The current federation can be said to be struggling, and it is already preparing to reveal this secret. Ringer also said with a look of incomprehension.

Liu Xuan knew that his incomprehension was not that the funds were spent in the interstellar realm, but why he hid the news, in fact, Liu Xuan also didn't understand this matter very much. This matter can be said to be the moment of life and death on the earth, why can I hide this news, this is too unfair to all mankind.

"Of course, as a soldier, I really shouldn't doubt my boss's decision, and I also want to hear your opinion, if you are in my position, what would you do at this time?" Ringer's face was sincere, and it could be seen that this very old commander had encountered this kind of thing for the first time, and it was normal to be a little flustered.

"After all, I am not in your position, and it is difficult for me to empathize with your situation, I can only say that I am the basis for this matter. In my heart, that's all. I think it's right, so let's find a chance to do it. As for your position, I also know that you can't be capricious, but some decisions still need to be ordered directly by you. Liu Xuan was talking about himself, but he secretly reminded Ringer that at the moment of the real earth's survival, what Ringer needed was not to obey the orders of his superiors, but to keep the torch of human civilization according to his own ideas.

"Thank you, Professor Liu, I understand. Next, let's talk about the starmissile......" Ringer was visibly happy, and then his voice changed abruptly, changing the subject.

Liu Xuan also smiled slightly, he knew that Ling, who was also a "primitive person", also understood what position he needed to stand on, and also understood what to do at this time.

Liu Xuan didn't feel the slightest strangeness, this matter can only end here, this place must be full of surveillance, and their conversation has actually touched the danger line.

Liu Xuan also spoke very naturally, and told Ringer in detail about his new technology, which was actually used on the Neptune probe at that time. Liu Xuan still did not disclose the news of the new nuclear-powered engine.

People are selfish, in fact, Liu Xuan is no exception, why didn't he tell the Federation about this new technology, on the one hand, the Federation can't use this technology for the time being, and the most important thing now is to resist the invasion of these foreign races. On the other hand, Liu Xuan wanted to be the first to pass through the wormhole and see the world on the other side of the wormhole.

According to his estimates, the other side of the wormhole should be the super civilization, and according to the creation of the wormhole crossing, this civilization should be no less than the fifth level civilization. Liu Xuan sometimes wonders if the electromagnetic wave barrier in the Milky Way galaxy was also made by them.

Originally, Liu Xuan should have embarked on a journey at this time, but the invasion of alien civilizations interrupted his plan, and in order to protect the earth, he had to temporarily put aside his wishes.

Liu Xuan and Ringer talked for three hours, and after repeatedly confirming that Liu Xuan's Star Ring Company still had inventory, Ringer also agreed with Liu Xuan's plan.

The inventory refers to the propulsion engine when the Neptune probe was launched last time, and the last time it was made, Liu Xuan deliberately summoned people to make an extra one, just in case the previous engine failed. But in the end, the probe was successfully launched, and the extra thruster became the bottom of the warehouse, but since it could be used this time, Liu Xuan would not be stingy, and he also knew that the Federation would not use it in vain, which gave the Transwarp Company a lot of income.

Liu Xuan had already calculated carefully when he came, and in order to maintain the accuracy of the last Neptune probe, the mass of the probe itself was still very large, and the speed of the thruster was severely limited by this.

But this time it was carrying a nuclear bomb, and the mass of the nuclear bomb was not worth mentioning compared to the detector, in other words, Liu Xuan was confident that he would use this thruster to further accelerate the speed of the interstellar missile and collide with the starfall earlier.

Time is still not enough for them.

But this is the greatest effort that the Federation has done so far, and in order not to further expand the news, the Federation has also invited all the scientists it can invite. In fact, most of it is about designing and making starships, which is the most critical for the Federation.

The Federation's focus is on the alien fleet in a few years, and there is nothing wrong with that, no matter how you compare, the latter is more threatening.

As for Liu Xuan, these people are all advance troops, and the purpose is to resist their first confrontation with this alien civilization.

Liu Xuan's proposal was soon announced, and after various accurate calculations, the interstellar missile equipped with Liu Xuan's new propulsion system was very likely to collide with Starfall between Neptune and Uranus, which was faster than the original plan. This is indeed good news for them who are pressed for time.

The intense calculation activities were immediately launched, but Liu Xuan and his three friends had other tasks, they needed to modify the thruster in a small area, after all, the thruster was designed for the detector, and some places were still very inappropriate, and Liu Xuan and the four of them were responsible for modifying it to be suitable for the use of nuclear warheads.

The Federation's high-efficiency Liu Xuan also really saw it once, just after passing this resolution, less than an hour later, the thrusters on the ground were transported to the Guardian.

The interstellar missile that needs to be launched this time is on the Guardian, and the transformation will also be carried out on this Guardian.

Ringer also directly appointed Liu Xuan as the main person in charge, leading a team to transform this propeller, the time is only one day, which is still very urgent for Liu Xuan, but it is not impossible to succeed.

The Guardian space station was busy, and at this time, there were still nearly forty days from the time Liu Xuan expected at that time, except for the time of the interstellar missile flight, they still had thirty days to improvise, of course, if the interstellar missile directly destroyed the starfall, these thirty days would be meaningless.

What Liu Xuan hopes most is that these thirty days will become meaningless.