All parts are in full swing manufacturing, Professor Ma has some leisure time, Liu Xuan needs to supervise the manufacture of parts and the assembly of rockets every day, and there is no time to eat and sleep every day, Professor Ma is also incompetent in this situation, there is no problem with the nuclear fuel that he is mainly responsible for, and Liu Xuan is responsible for the structure.

Liu Xuan can only sleep for one hour a day now, and his meals are completely random, and after half a month, Liu Xuan's whole person has lost a lot of weight. Fortunately, there were no major problems in the manufacturing of the parts, and everything was going according to plan.

Li Ping and others are not idle, they are simulating the flight orbit of the spacecraft every day, from the earth to Jupiter, first of all, to break through the earth's garbage zone, this garbage zone is 100% artificially created, are some abandoned spacecraft that have passed the service period, some were directly blown into pieces by missiles, but under the influence of the earth's gravity, these fragments still stay in space, revolving around the earth, speaking of which, they have become small satellites of the earth.

The second thing to break through is the asteroid belt, which is full of huge rocks, and the spacecraft must pass through the seams to reach Jupiter's vicinity without damage.

The third thing to break through is Jupiter's own star rings, which have actually been done by predecessors, so there is no great difficulty, Li Ping and they just need to confirm the right path. It's a big deal to carry antimatter missiles on the spaceship, and directly carry out a devastating strike when it encounters a place that can't pass through. Of course, if you want to get this kind of weapon, you still need Li Ping to apply for it layer by layer.

The people of the whole city are in the service of this laboratory, and they know that if it succeeds, it will be another great breakthrough in the history of mankind. Despite all this, there were already people who succeeded twenty years ago, they just followed the path of their predecessors again, and the pioneers had already opened the way for them, but unfortunately the pioneers disappeared into the vast universe.

In this intense preparation, a month has passed, thanks to the city's complete infrastructure and high-tech facilities, in a month's time, Liu Xuan has assembled the core part of the nuclear-powered engine, there is no big problem in other aspects, there is no need for him to worry about it, and he does not plan to carry anything on the first test flight.

The order from above was soon down, the test flight was scheduled to begin in three days, and now their last step was to reload the nuclear fuel and wait for the final launch.

Early in the morning, Liu Xuan and Professor Ma's team has been ready, the huge nuclear fuel box has been ready, under the joint supervision of Professor Ma and Liu Xuan, the fuel slot that has been reserved is slowly loaded, the whole process actually does not need to release the nuclear fuel at all, the nuclear material supply of the nuclear reactor in the spacecraft is completed by robots, which is also to ensure the safety of scientific research staff.

The whole process lasted for a day, all the fuel was placed, Professor Ma and Liu Xuan's hanging hearts finally let go, and when the night of the underground city fell again, the two of them had already arranged the affairs of the institute, called Li Ping, and the three of them walked towards a tavern in the city, which was a celebration and a relaxation.

Liu Xuan has been here for half a year, although he knows that Li Ping's position is actually higher than theirs, but it has not affected the relationship between Li Ping and the researchers, and almost all the researchers admire Li Ping's knowledge.

After a long period of contact, Li Ping's true nature was finally revealed, when she was working, she was the most serious time, and when she was playing, she was the most hilarious one. According to Liu Xuan's view, she is a combination of a young girl and an elderly researcher.

Walking in the city, Liu Xuan felt a lot of emotion in his heart, thinking of his confusion at that time, Liu Xuan just wanted to laugh, as long as there was a place for Li Ping in the future, it was indispensable to laugh at Liu Xuan's sense of fear when he just arrived in the underground city, but there was no mention of everything he did in the memorial hall.

didn't ask for wine, according to Li Ping, the wine should be kept and waited for everyone after the successful launch, Professor Ma and Liu Xuan also agreed with Li Ping's statement.

Eating, drinking, chatting, and not discussing things at work, everyone just talked about their past, and this time Professor Ma also knew that Liu Xuan was Liu Qingyun's son.

"You kid can really pretend, when the time comes, I'll pay three glasses of wine, I'll make a note of it first." Professor Ma said with a smile next to him, and he didn't know where to turn out a small notebook and write it down carefully.

"This is really that little notebook written down. Hahahaha, you can't escape this time, high liquor, three glasses! Li Ping coaxed beside him.

Leaving Liu Xuan alone beside him and shook his head helplessly, according to his amount of wine, three glasses of liquor, he really had to lie in bed for a day before he could wake up.

This meal was the slowest Liu Xuan ate in a month, and he enjoyed his rare relaxation unhurriedly.

All the things in the city are provided for free, and there is no money to say, which is also to avoid the embarrassment of three people competing to pay, no drinking, no drunkenness, the three of them went around the city a few times and then returned to their own residences, because Li Ping did not return to his own place for a long time, and now Liu Xuan knows that Li Ping's residence is actually next to his house, a street away from his house.

Three days passed in a flash, and in these three days, Liu Xuan and others were idle, which does not mean that others are not busy. Everyone else was busy transporting rockets loaded with nuclear fission engines into silos.

At the scheduled time, all the preparations were completed, and Liu Xuan and Professor Ma went to the launch control room, ready to launch the order.

"Ready to launch!"

There was news from Li Ping's side.

"Nuclear fuel filling!" Liu Xuan said behind the controller.

The controller hurriedly entered instructions on the computer, and Liu Xuan watched from the side, always ready to prevent emergencies.

"Start the nuclear fission reactor." Liu Xuan saw that the machine had finished filling the nuclear fuel, and another order was issued unhurriedly.

There was no sound, but the beating of various data on the computer screen made Liu Xuan understand that the nuclear fission engine had started.

"Huh?!" After Liu Xuan's eyes swept the screen, he stared at a data and didn't move, but he chuckled in his heart.

"Is this the power data?" Liu Xuan asked the controller next to him.

The controller nodded in correctness.

"Stop the supply of nuclear fuel, and temporarily slow down the reaction speed of nuclear reactors!" Liu Xuan shouted, he knew that there were still some accidents after all.

"What's wrong?" Professor Ma saw that Liu Xuan's order was incorrect, and hurriedly asked.

"The power output is different from what we calculated, and I guess there should be a leak of nuclear fuel." Liu Xuan said with a serious face.

The entire control room turned pale in an instant, and they understood that once it leaked, the failure of the nuclear-powered engine was a trivial matter, but it was a major matter to cause an explosion, and according to the amount of nuclear fuel, it was enough to completely bury the city underground.