There was no time for the nuclear ejection to be released, and after Ye Han announced the reward from his superiors, he ordered the team members to continue hibernation.

Originally, he should have injected hibernation himself, but Ye Han was worried about Bai Xiaoting and the child, and he didn't want to hibernate so early, so he used his power for personal gain.

After the soldiers hibernated, he had to send a few videos to Bai Xiaoting every day, and more than a week later, Yushan received an order from the Tiangong, and Ye Hancai reluctantly injected hibernation.

It was mid-March 2028 when I woke up again, and after waking up, I checked the communication records and learned that the Fourth Fleet had departed on December 26, 2028, and would arrive on Mars in a few days.

The departure time of the fleet was exactly a week after Ye Han had been watching hibernation!

Ye Han's brain was a little dizzy when he saw the news, didn't he say that the preparation was not sufficient? How do you say that you set off when you go? But with a little thought, he figured it out.

The reason for this situation is completely due to the distance between the earth and the fire.

To put it simply, the Earth and Mars are in motion, the conjunction period of the two planets is two years, at this time the two planets are the closest, the Earth is exactly between the Sun and Mars, astronomically called Mars opposition - the word opposition in astronomy refers to an outer planet and the sun are located on opposite sides of the Earth, whenever this time, the two planets are the closest.

There is also a phenomenon called transit, in which Mercury or Venus blocks between the Earth and the Sun.

The last Mars opposition will occur on February 19, 2027, the second day of the departure of the Third Fleet, when Jupiter's opposition had just ended for half a month.

By the time the Third Fleet returned, the distance between Earth and Mars had already been widened, and the fleet approached Mars in order to use Mars' gravitational slingshot to accelerate the fleet and save time for return, otherwise Yushan would not have stayed on Mars.

The Fourth Fleet is close to the end of 2027 when it departs, and it is nearly a year before Mars opposition, and the Earth and Mars are on both sides of the Sun, although the distance is not farthest, but it is not too much worse.

But if you don't set off, the next opposition of Mars will have to wait until March 2029, and Ganymede will arrive on Mars in May, and it will be too late until 2029, so even the fleet must set off even if it knows the farthest range.

In this way, the Fourth Fleet will depart at the end of 2027, and the fleet will fly directly to Venus, increase a certain speed with the gravitational pull of Venus, and then continue to fly to Mars - due to the angle problem, the speed increase of the fleet is very limited.

In this way, after a long journey of three and a half months, the Fourth Fleet finally succeeded in flying to Mars - if it flew at full speed, the time could be reduced by another half a month, but the acceleration and deceleration of the fleet also took time, so it was delayed for another half a month.

In the past, Ye Han may not even be able to think of the reason, but after staying in the fleet for a long time, he is also close to Zhu Zhechi, and he has more and more knowledge about the operation of celestial bodies, so he thought of the reason for this.

The arrival of the Fourth Fleet meant the continuation of the Mars plan, and Ye Han and the awakened soldiers immediately got busy and prepared to meet the Fourth Fleet.

On March 18, 2028, the Fourth Fleet arrived on Mars, and the Yushan and Luzhou were all placed under the unified command of the fleet.

The Fourth Fleet of the Expeditionary Force is the most bizarre alternative in the history of the Expeditionary Fleet, the other fleets are mainly warships, and the tasks are to fight to the death with aliens, only the Fourth Fleet is composed of transport ships and super engines, and the number of spaceships is also the highest in the history of expeditionary fleets, and there are no less than 30 super engines alone.

Ye Han had a simple communication with the fleet, and then immediately organized the soldiers to start construction.

The construction is not so simple, you must collect the nuclear bombs in order, and place the nuclear bombs in the designated wells one by one, and you can't make any mistakes.

In order to ensure that nothing goes wrong, the Fourth Fleet also specially organized a quality inspection team, and each placed nuclear bomb must be repeatedly checked, first by the soldiers themselves, then by Ye Han with Ouyang Ping and Luo Qi, and finally by the fleet.

The Marines are under pressure like never before!

At this time, Ye Han also came back to his senses, installing a nuclear bomb is not a simple matter, and there is no more professional team than the Marine Corps in the entire Beiyue Continent, or why should the Marine Corps stay?

The fighters planted the nuclear bombs in the underground wells one by one, and the next step was to install the super engines on the satellites and wait for the arrival of Europa.

But at this time, there was a divergence in the plan, according to the original plan, it should be to fix the super engine directly to the satellite, and when the satellite is blown up, it will directly push the megaton debris into the Ganymede.

However, there is now an opinion that even if the power of a nuclear bomb is carefully calculated, a nuclear bomb is still a nuclear bomb, and if the super engine is fixed to the satellite, it is difficult to ensure that the engine will not be damaged in the nuclear explosion, and it will be too late to regret it.

This thing can be built in a hurry, and a dozen more can be sent in the future, and even if it can be built in the future, it will be too late, and if this thing is broken, there will be one less, and it is not enough in the first place, why do you have to risk installing it on the satellite?

The new plan was to blow up the satellite first, then use the super engine to get on it, fix it, and then push the satellite fragments to hit Europa.

But there are also problems in this, one is that when the satellite is bombed, Europa is already close, and how long does it take for the super engine to be fixed; the second is the irregular shape of the pieces, how to fix the super engine in the correct position; Third, the explosion will inevitably produce a large number of fragments, and whether the super engine will be damaged in the process of rushing to the fragments; Finally, there is the problem of concealment, the super engine is a man-made object at first glance, which is incompatible with the shape of the satellite, and no matter how stupid the alien is, he should see that there is something wrong with the satellite.

These are just a few big problems that need to be solved urgently, and there are all kinds of small problems that need to be solved urgently by the fleet.

Not to mention the fleet, even the northern capital has a headache because of this, and some people even put forward the suggestion of blasting the satellite now, letting the fragments of the broken satellite fly around Mars for a while, and then crash into it when Ganymede comes.

The nuclear bomb is buried deep underground, and the detonation has no sound and light effect, but the aliens are not blind, so they may not be able to see the satellite shattering? When the aliens are prepared, won't they startle the snake?

If all the preparations are in vain, Ye Han won't even be able to pass this hurdle by himself - what is Lao Tzu doing when he gives up his wife and children and stays on Mars?