On August 9, 2028, the Northern Capital finally issued the order to set off, and the two warships immediately flew away from the Space City.

The speed of the order was much slower than Ye Han expected, I don't know what affected the issuance of the order, presumably the northern capital has not been as calm as it seems these days.

At the same time as the fleet departed, a special spacecraft was also launched from the Qiongzhou base, and the official delegation of the negotiation operation, Li Shili, the leader of the negotiation team, and Feng Bo and Jia Zhi'an, team members, were in the cabin. (PS: Li Shili made a cameo appearance by netizen Yezi Meow - no word count here!) ）

Due to the special nature of the negotiations, all three of them have military backgrounds, but only Li Shili is engaged in negotiations, and Feng Bo and Jia Zhian are both active military officers, and they are specialized in intelligence.

In other words, Li Shili's task is mainly to negotiate, and whether he can lead the negotiation depends on what the aliens are trying to do.

Feng Bo and Jia Zhi'an's task is to collect intelligence, and unless it involves the military, they will not easily speak.

The three of them have either worked in Beiyuezhou or held positions on the Tiangong, and none of them are the first brothers to go into space for the first time.

A few minutes later, the spacecraft entered a low-altitude orbit and successfully reached Tiangong after two orbit changes.

After 36 hours, the three of them boarded a traffic boat to break away from the Tiangong and accelerated to approach the scheduled course of the two-ship formation.

About an hour later, the two-ship formation swept over the earth, and the transport boat carried out a full acceleration of 40 minutes before catching up with the Yushan, sending the three-person delegation into the fleet and returning immediately.

Ye Han warmly welcomed the arrival of the delegation, if it was on the ground, maybe there would be a welcome ceremony, but everything was simple in the battleship, and the two sides entered the battleship and floated in mid-air to introduce themselves, and get to know each other and it would be over.

In Li Shili's words, after receiving this task of nine deaths and one life, he is ready to sacrifice, he is all grasshoppers on a rope, what kind of politeness is it?

Ye Han admires Li Shili's cheerfulness very much, if this is his nature, then Li Shili must be a very good person to get along with.

However, Li Shili is at least at the same level as the ambassador abroad, and when he can be an official at this level, which one is not fine and slippery? No matter how stupid Ye Han is, he will not judge a person's nature based on his first impression alone.

After a short contact, Ye Han arranged for the delegation to inject hibernation hormone for the first time, and the three of them did not stay in the Yushan for half an hour, so they lay down in the hibernation cabin together.

Later, Ye Han and others were also injected with hibernation and fell into a deep sleep, leaving only a few people in the battleship to continue to operate the battleship.

Originally, it was enough to leave only one person on duty, but considering that there might be an alien attack on the road, a few more people were specially arranged for emergency.

At this point, the Yushan and Beihai officially embarked on their journey, and the two-ship formation will fly over a distance of 60 million kilometers in the next month or so, and finally arrive at Europa.

The mission starts and ends in Earth's orbit, and it seems unnecessary to use hibernation, but the distance between the two planets is 0.4 AU, and the average distance between Earth orbit and Martian orbit is only 0.52 AU, and the range is not as close as ordinary people think.

And the formation can't chase Ganymede along the Earth's orbit, because Ganymede is also in constant motion, and chasing the tail is the most time-consuming and laborious stupid way.

The straight line between the two points is the shortest, and the planetary orbit is approximately circular, through a very simple calculation, the military got the detailed orbital data of Europa, and then calculated the intersection position according to the speed of the Callisto and the formation, and then the formation flew directly to the target point.

The final trajectory of the formation is to draw a straight line inside the Earth's orbit.

When Ye Han woke up, it was September 10th, and the remaining voyage of the formation was less than two days, and everyone recovered, and the spaceship, which had been deserted for more than a month, suddenly became a lot more noisy.

Ye Han rushed to the bridge as soon as possible, and saw Lin Yi, who felt that he had just been separated for a short time, but had actually been absent for a month: "How is it on the road?" ”

"Everything works!" Lin Yi said in a hoarse voice.

Ye Han took a closer look and found that Lin Yi's appearance was very haggard, and he couldn't help but be stunned: "What's wrong with you?" ”

"It's fine." Lin Yi smiled reluctantly, "Boiled, I'm too nervous." ”

"What's wrong?" Ye Han asked in surprise.

"It's okay, I'm too close to Europa, I'm too nervous." Lin Yi said.

Ye Han shook his head with a smile: "Okay, you go back and rest, I'll keep an eye on the bridge first, don't get to the place, you lie down first, if there is a case, I still point to you to save your life." ”

Lin Yi knew that his state was wrong, so he didn't mean to shirk at all, so he directly unbuckled his seat belt and floated up: "If you don't land, you won't need me." ”

Ye Han smiled: "You don't have to come here for the past two days, come back when you get to the place." ”

"Understand" Lin Yi's voice floating out of the bridge is even more erratic, a bit like the dubbing in a ghost movie.

Ye Han officially took over the bridge, and not long after, Li Shili, who had just been freed from the side effects of hibernation, rushed to the bridge with two companions.

After a few polite words from both sides, Li Shili floated to the main screen: "Captain Ye, how long do we have left?" ”

"Two days, about forty-six hours." Ye Han said.

Li Shili slowly turned around: "Captain Ye, I haven't been in contact with aliens, I have a question for you." ”

"Knowing everything is endless."

"The above only sent me to negotiate, but they didn't tell me how to contact the aliens, we will be on Europa soon, how to notify the aliens?"

Ye Han thought that Li Shili wanted to know something, but he didn't expect it to be such a simple question: "No need to contact, the aliens must know that we are coming, and they will definitely take the initiative to contact." If you don't move after Callisto, fly around Callisto a few times until the aliens reach out. ”

"Oh!" Li Shili suddenly said, "I really didn't think I could do this." ”

Ye Han tugged at the corners of his mouth: "If you didn't even have this ability, the aliens would have let the expeditionary force be wiped out several times." ”

"Yes, it's me who is worrying about the sky." Li Shili nodded, and continued to ponder the Callisto on the screen.

It wasn't the first time he'd seen Europa, but the last time he saw Callisto was a month ago, when it was just beginning to recover, and plants were just beginning to sprout, covering Callisto's land with a layer of green.

Many people who saw this scene at that time were amazed, alien plants were either milky white or brown, and what was the matter with green plants? Is this still an alien plant?

Didn't the aliens get the earth's plant specimens, isolate the chlorophyll and take the modified alien plants, right?