Of course, when the huge fleet set sail from the lunar orbit in the direction of Jupiter, the lunar orbit space station above the lunar orbit and various space stations in the earth orbit were also crowded with countless people who came to watch the fleet set off, not to mention this time

The purpose of this fleet heading to Jupiter is to transform Venus and expand the survival and living space of human civilization. The size of this fleet alone is enough for people to come and watch, not to mention the scale of the fleet dispatched this time is so huge.

Watching the fleet gradually go away, Zhang Yi, Shi Haiming and others all knew how difficult the task of the fleet setting off this time was. This time their mission target was Callisto, although it was smaller than Europa.

, the distance between Callisto and Jupiter is farther, relatively speaking, the effect of Jupiter's gravity is smaller, but even so, for Zhang Yi and humans, if they want to move Callisto, let Jupiter

The accurate collision between Moon and Venus is also very difficult.

You must know that Callisto is not Ceres! Not to mention other things, it is definitely not comparable to Ceres in terms of size, so this factor alone makes it countless times more difficult for humans to move Callisto, not to mention

Callisto is a satellite of Jupiter. If humans want to move Callisto, they have to face Jupiter's gravitational pull. If they are not careful, Callisto will not only be unable to be moved out of Jupiter's gravitational range, but may even be directly moved.

The gravitational pull of Jupiter will capture the planet and cause it to fall into the body of Jupiter, or it will be deflected and fly towards other directions in the universe, or even towards other planets in the solar system. This is something that humans never want to see.

As time went by, after a month of sailing, the fleet finally arrived near Jupiter, and the movable planetary engines in the fleet were also preparing to start landing on Callisto. As for why Zhang Yi and the others chose Jupiter this time

Ganymede came to hit Venus instead of Ganymede or Io. This is because compared to Ganymede, the size of Callisto is smaller. I should not say smaller, but much smaller.

With the current technology of human civilization, although there is no difficulty in moving Ganymede, compared with Ganymede, the risk of moving Callisto, which is smaller, is smaller, and Io is a very small star.

Active planets are full of volcanic eruptions. It is very difficult to move with the current human technology, so Callisto is naturally the best choice.

"Report to Mr. Zhang! The fleet has arrived near Callisto. Are movable planetary engines allowed to land?" Zhang Yi, who is always paying attention to the fleet, received the fleet's report not long after the fleet arrived near Callisto, and

Request fleet to log in.

"Allow landing." When he heard that the fleet had arrived, Zhang Yi naturally had nothing to hesitate and ordered directly. Although the fleet was far away from Jupiter and there was a long delay in signal transmission, the fleet has not yet landed on Callisto.

, time naturally allowed the fleet to ask for instructions from the headquarters, so the fleet sent a message back to Zhang Yi and others for instructions.

However, once the fleet lands and the movable planetary engine is deployed and started, everything can only rely on the fleet itself. After all, unexpected accidents may occur anytime and anywhere in the universe, and many times there is no time to give the fleet

For instructions from the headquarters, these situations need to be handled by the fleet itself.

"Order the movable planetary engines and small transport ships in the fleet to start landing on Callisto. At the same time, all warships are on alert, and other spacecraft will monitor Callisto at any time. If there is any abnormal movement on Callisto, report it immediately." This time he was

The person in charge of the mobile Callisto fleet was appointed to be the person in charge of the fleet that was previously responsible for detecting the entire Jupiter and various Jupiter's satellites, that is, Guo Chen. After receiving the operation from the headquarters, he immediately conducted inspections of each spacecraft in the fleet.

commanded.

"Understood! Commander!" After saying that, the movable planetary engine in the fleet received Guo Chen's order and immediately began to slowly approach Callisto, while other spacecraft in the fleet also immediately flew towards their mission areas.

Go and start monitoring the situation on and around Callisto to ensure that these planetary engines will not cause any accidents during the landing process.

At the same time, the flagship of the fleet, Guo Chen's spaceship, is also transmitting the galaxy in the direction of the earth in real time to ensure that any situation here can be known to the headquarters. Of course, in addition to his spaceship, everyone in the fleet

The other spaceships, like his, are transmitting information towards the earth in real time.

The Federal Space Command Center far away from the Earth is also receiving information sent back from the fleet in the direction of Jupiter. Although the information sent back is half a day old due to the distance, at least Zhang

Yi and the others were able to know the situation of the fleet a few hours ago.

Zhang Yi and others looked at the cold world on the virtual screen, which was Callisto, in the command center. He was thinking about some data about this planet, based on the data obtained from the previous detection of Jupiter.

Callisto was first discovered by humans in 1610. It is the second largest satellite of Jupiter after Ganymede. Its diameter is 99% of Mercury, but its mass is only 1/3 of Mercury. At the same time, it orbits Jupiter's

The orbit, compared to the other three major satellites of Jupiter, is the farthest, about 1.88 million kilometers. Callisto is not like the three inner Galilean satellites - Io, Europa and Europa.

Samana is in an orbital resonance state, so there is no obvious tidal thermal effect on it. Callisto is a synchronous rotating satellite, which always faces Jupiter with the same side. Due to its farther orbit, the surface of Callisto is smaller than that of the inner satellites.

It is less affected by Jupiter's magnetic field.

According to existing data, the surface of Callisto has suffered violent impacts, and its geological age is very old. At the same time, there are no plates, volcanoes, earthquakes or other geological movements on Callisto, so its geological features are mainly caused by meteorites.

Or caused by an asteroid impact.

At the same time, the data obtained during the previous detection process showed that Callisto also has an atmosphere like Europa, but what is different from Europa is that the main components of the atmosphere are different. Europa’s thin atmosphere

It is mainly composed of oxygen, while Callisto’s atmosphere is mainly composed of carbon dioxide. At the same time, there is also oxygen in its atmosphere. In addition, it also has a violently active ionosphere. According to previous data analysis and super

Computer simulations show that this violently active ionosphere was formed by the impact of the gas and dust disk surrounding Jupiter.

According to computer simulations and inferences from scientists on Earth, Callisto also has a core. However, unlike the other three major Jupiter moons, the internal structure of Callisto did not undergo rapid changes due to its slow formation process and lack of tidal thermal effects.

Differentiation. The thermal convection inside Callisto began soon after its formation. This convection led to the partial differentiation of the internal structure. The underground ocean located at a depth of 100 to 150 kilometers on the surface may be related to the relatively small rocky cores.
Chapter completed!