On the spacecraft, a telescope was aimed at the sky under Chen Yue's control.

Jupiter is suspended silently, and the air currents above it are constantly tumbling, creating a complex picture that looks beautiful in its own right. Bright Saturn hovers beside it, surrounded by a brilliant "ring";

Many stars dot the dark night sky, mysterious and distant. Looking at the vast night sky, Chen Yue couldn't help but think of the magnificent river system, the gorgeous supernova relics, the black hole, the neutron star, the white dwarf, the infinite secrets that exist in the vast universe, and many more.

The starry sky is always desirable. Especially for Chen Yue at this moment.

In the past, limited by the human body, this yearning was just a yearning. Now, with the hope of truly realizing it, and the hope that one day I will truly be able to travel in the universe and explore the infinite secrets, this yearning is even stronger.

It's a pity, looking at the wooden eight-type spaceship that he has created with the most advanced technology, but it still has a single function, an ugly appearance, and backward performance, and can't even go to the starry sky a little farther away, Chen Yue sighed.

"We still have to be down-to-earth and develop science and technology little by little. Take your time. ”

He thought so.

For the excellence of the industrial base, little by little iteration and development are still continuing. The two planets are also coming and going more frequently. Time passed quickly, and Chen Yue slowly pushed his scientific and technological level forward.

In the year 155 of the new calendar, on Callisto, a field of ice tollin was depleted.

This is a mining area about 500 kilometers away from the Glowing spacecraft. It's not big in size, it's only medium. Here, Chen Yue arranged for more than 2,000 robots, as well as corresponding machinery and vehicles, to be responsible for the mining of ice tollin here. There is also a railway that extends to this area, which is responsible for transporting the ice tollin here.

It has been mined since the 45th year of the new calendar, and it has been 110 years now.

The electricity emitted from the combustion of the ice torin produced here drives the operation of many machines under Chen Yue's command. But now, it's finally drying up.

The mining area has been turned into a large pit with a diameter of about one kilometer and a depth of hundreds of meters. The bottom of the pit has exposed gray rocks, and there is no ice tollin that can be mined by Chen Yue.

When the minerals are depleted, the abandonment is. Anyway, there are many other ice tollin mines on Ganymede and Europa.

But this incident aroused Chen Yue's vigilance and attention.

He made a statistic. At the moment, he calculated all the reserves of glacial torin and solid oxygen ore areas that he owned, as well as his own consumption.

The final calculation results were presented in front of Chen Yue.

According to the current energy consumption growth curve, in a maximum of 50 years, the ice tollin resources on Europa and Europa will be completely depleted.

And, ice tolin is Chen Yue's most important source of energy, and there is no one.

Without the electricity generated by the combustion of Icetorin, what would your industrial facilities rely on to operate?

Chen Yue knew that this day would always come. After all, the planets Ganymede and Ganymede are too small. But he didn't expect that this day would be so close to him, and it would only be 50 years.

"We have to find new sources of energy."

Chen Yue thought secretly.

At this stage, there are only two ways of energy source that Chen Yue knows. The first is chemical energy, and the second is nuclear energy.

Whether it's burning firewood or coal, burning methane or ice tollin, it's actually the same category, and that is chemical energy. Nuclear fission and nuclear fusion are nuclear energy.

Needless to say, nuclear fusion has not been mastered by humans at its peak, and Chen Yue is naturally impossible to apply. Chen Yue has nuclear fission technology, but ......

He did not find enough fission energy here, for example, uranium-235, plutonium-239 and the like.

Nuclear energy is being quickly denied.

Chen Yue knew that he still had to find a way from chemical energy.

However, on Ganymede and Europa, there is really nothing to burn except ice tollin. If there were, I applied it just after I came, and I wouldn't have relied on ice tollin as a fuel.

This made Chen Yue fall into a dilemma.

"My pace of development can only get faster and faster, and the demand for energy can only get bigger. We have to find a new way to supply energy. These two planets are gone, can we only get them from the rest of the planets? ”

Chen Yue manipulated the telescope and began to observe the planets that were closer to him one by one. But after a moment, he gave up.

The few moons of Jupiter that are close to each other are either too small to have too many ice tollin reserves, or too large, such as the four Galilean moons, to be so large that they simply cannot easily and massively obtain energy from them.

After excluding Jupiter's moons, Chen Yue's gaze turned to the core of Jupiter's system, Jupiter.

Jupiter's gas planet is primarily composed of hydrogen. Hydrogen has a high calorific value, much higher than that of glacitoline. If there is enough hydrogen as fuel, it can support its own energy needs.

Moreover, Jupiter's hydrogen is almost inexhaustible.

It would be great if enough hydrogen could be mined from Jupiter.

Chen Yue looked at the huge Jupiter, and stars were almost popping up in the telescope. But after watching it for a long time, he still had to sigh with regret and give up this fantasy.

Again, that's the reason. Jupiter is too big.

Jupiter is even more massive than all the other seven planets in the solar system combined. It is so large that it can even pull the center of mass of the entire solar system from the inside of the Sun to the outer edge of the Sun.

Chen Yue knew that, strictly speaking, many planets in the solar system, including the earth, were not actually revolving around the sun, but in fact, they were actually orbiting around the mass center of the solar system.

Even the sun itself orbits around this center of mass.

Because the Sun alone occupies the vast majority of mass in the entire solar system, this center of mass should normally be inside the Sun.

But why is the reality outside the sun?

It's because of Jupiter's presence. It was so big that it caused the center of mass to come to the outside of the sun.

For such a huge star, mining hydrogen on it is simply a dream for Chen Yue at this moment.

"Hey, it would be nice to be able to go to Jupiter and mine hydrogen......"

This kind of situation that can be seen but cannot be eaten makes Chen Yue regretful.

"Is there any way to get enough hydrogen without going to Jupiter?"

Chen Yue thought silently, silently reviewing the technical documents in the database.

Suddenly, Chen Yue's eyes lit up.

"There's a way!"