And Yang Meng's busy content is to sort out the scientific and technological content from the earth.

Because there is a certain interruption in his communication with the earth, it is necessary to sort out scientific and technological data.

As for when the ship will be updated with new technology,

He will have to wait until he has the resources ready to do so.

For the sorting out of the earth's news, Yang Meng is proceeding slowly,

At the same time, the probe's exploration of Rutan Star West is still ongoing.

After sorting out the information for a long time, Yang Meng also asked Xiao Yi about the progress of the detection.

"Xiao Yi, how is the satellite exploration of the ice giant going?"

"The survey report is being summarized, wait a minute......

Hearing Xiao Yi's words, Yang Meng nodded slightly,

Although the previous detection results of the third and fourth planets of the Rutan system were ice giants,

For him, the possibility of resource gathering on such a planet is almost zero,

But in line with the principle that since the detection satellites are sent, do not waste them,

After exploring the planet, continue to explore the planet's satellite system, after all, there may be some opportunities for the planet's "moon".

In general, the number of moons of a planet is related to its own mass and its position from the star.

The size of the mass, to a certain extent, determines the upper limit of the satellite.

The distance from the star affects the lower limit of the number of satellites that the planet can keep.

For example, the Earth has only one moon, and that is the Moon.

Although the mass of Venus is about the same as that of the Earth, it has no moons because it is too close to the Sun.

As for Mercury, which is closer to the Sun, not only does it not have its own moon,

Even Mercury itself, because of the blowing of the sun, has only an average thickness of ten kilometers left of its own crust.

And Mars, which is farther from the Sun,

The mass is much smaller than that of the Earth,

But even so, Mars still has two irregular small moons.

As for the other four giant planets further away,

Because it's far enough from the sun, and it's massive enough to have a complex satellite system,

Especially Jupiter,

Because of its massive mass, one of its "moons", Europa, is even larger than Mercury.

And in the Rutan galaxy,

The first four planets,

The first planet is a lava planet with no moons due to its proximity to the star

The second planet, Rutan B, is the planet he orbits at this time, and it has no moons.

The third and fourth stars are ice giants,

Although these two planets are less than an astronomical unit away from Rutan,

But because the mass of Rutanstar is small enough,

These two planets are already far away from the stars.

And the mass of the two of them is large enough,

The mass of the third planet is 10.8 times that of the Earth, and the mass of the fourth planet is 9.3 times that of the Earth.

Even if the mass of these two planets is not exaggerated to the point that Jupiter is 318 times the mass of the Earth,

But these two Rutan galaxy planets, compared to Uranus, the gas giant planet with the smallest mass in the solar system,

It's only three or four Earth Earths missing!

Therefore, in previous rough observations, it was found that there are more obvious satellite systems in these two planets.

"I don't know, is there any hope of discovering a mineral moon like Io!"

At this time, Xiao Yi finally sorted out the exploration information of the third and fourth planets.

When Yang Meng saw the report sorted out by Xiao Yi, he was slightly disappointed,

"The third planet, there are only three moons that can maintain hydrostatic equilibrium?"

"The fourth planet, there is only one such moon!"

The so-called maintenance of hydrostatic equilibrium is whether a celestial body can turn itself into a ball.

If a celestial body is not even a sphere, then it is a sphere, and it can only be divided into cratered asteroids.

Of course, whether it is a ball or not is the criterion for judging a planet, and whether a satellite is a ball or not does not affect whether it becomes a satellite or not.

"I wonder if there can be any discoveries on these spherical moons?"

"Xiao Yi, where is the detector now!"

"Two of the larger satellites are expected to pass by in three days!"

Hearing such an answer, Yang Meng nodded silently,

Although he was very much looking forward to discovering a moon like Europa,

But he knew that Io's special moon existed because of Jupiter.

"Speaking of which, I've been in Io's training base for a while!"

Thinking of this, Yang Meng recalled some things,

The satellite system in the solar system is far more complex than that of the Rutan system,

Among them, Io is a very special moon.

He is the fourth largest moon in the solar system, and in terms of volume, it is only slightly smaller than Mercury.

Although Io looks special,

But in the era before his grandfather, there was not much attention to Europa,

Because this is a harsh moon, and there are more than 400 active volcanoes on its surface.

Almost every moment due to the emergence of violent geological movements volcanic eruptions,

And such a strange sight can be said to be unique in the entire solar system of satellites,

You must know that the average temperature of Europa, Europa, and the surface of the earth next door to him has reached minus 160 degrees.

And Mars, which is closer to the Sun than Europa,

Because of the decrease in core temperature, there are very few records of volcanic eruptions in the entire history of human observation on Mars.

And Europa is so far from the sun and so cold, so it can be so active,

And the reason why it can be so active is very simple, because of the pulling effect of Jupiter's gravity,

As a massive object 318 times the mass of the Earth, its gravitational pull on the surrounding moons is terrifying.

And after learning about the situation on Europa, human attention to Europa has decreased a lot.

At that time, as a human being who had just entered space,

In deep space exploration, human eyes are more focused on Europa, Europa, Titan, and Titan.

Humanity is desperate to find evidence of life on other planets.

And Europa, Europa, Titan,

After a long period of exploration and observation, these large satellites found that there was hundreds of kilometers of ice on their surfaces.

According to space telescope observations, it was also found that these satellites had liquid ejected from under the ice.

After a large amount of data demonstration, it can be confirmed that these satellites are under the thick ice, or there are subglacial oceans or subglacial lakes.

As for Titan, it's an even more amazing moon.

There are clouds, rain, even rivers and oceans,

The ocean liquid that exists only on it is not water in the human understanding,

It's a hydrocarbon polymer,

For people who have not experienced the chemical devastation of hydrocarbon polymers, they may not know what they are.

If you have learned a little about chemical substances, you can understand that gasoline is a hydrocarbon.

In the face of these magical moons in the solar system, humans naturally ignore the dangerous Io,

However, when mankind broke through nuclear fusion technology and made up for the mobility in the solar system, it was discovered that Europa was the real treasure moon.