Propylene is a colorless flammable gas at room temperature and is a hydrocarbon. However, on Callisto, because of its extremely low temperature, it exists in solid form.

Previous explorations of Callisto, including those of the ongoing satellites, have shown that this organic matter is more widespread on Callisto. As for the specific formation mechanism and why these things exist on Europa, Chen Yue is not clear.

Preliminary speculation suggests that it may also be the same as the sulfur on Europa, which was ejected by Europa.

On Earth, propylene is commonly found as a chemical raw material. It's combustible, but no one boils water and generates electricity.

But at the moment, on Europa, there is not so much room for picking, as long as it can be burned, and the heat can be released after burning.

In addition to propylene, if you want to boil water to generate electricity, you need another vital element, oxygen.

Callisto is also aerobic, and it has also become solid due to its extremely low temperatures, spreading like ice on the planet's surface. Previous satellite explorations have also searched some solid oxygen convergence areas, and at this moment, Chen Yue has also sent a robot prospecting team to explore on the spot.

On the dark red surface, seven robotic prospecting teams were scattered all over the place.

The oxygen detection team was the first to send back the good news.

At the edge of a massive impact crater, named "Gaia", a robotic prospecting team has discovered a large amount of solid oxygen.

Of course, it is not pure, but mixed with a lot of debris, with the rest of the gas, but also a lot of gravel and dust, etc.

One can imagine how turbid the air would be once Chen Yue turned these solid oxygens into gas again. If you use it to breathe for people, I'm afraid you can choke to death with one breath.

But it's still the same sentence, it doesn't matter. As long as the fuel can be burned, the air quality is not bad, Chen Yue doesn't care.

The prospecting robot used some instruments to roughly explore the oxygen reserves here. The result made Chen Yue more satisfied.

The oxygen content stored in this place is probably hundreds of thousands of tons, which is enough for a long time. Not to mention that some oxygen reserves have also been found in other places.

But on the other hand, the detection of propylene ore is not optimistic.

The robot prospecting team came to the place where the previous satellite observation believed that there was a large amount of propylene ore, and conducted a field exploration, and the result made Chen Yue's heart sink.

"What's going on? Only this layer on the surface? The thickness is only a dozen centimeters? Doesn't that mean that such a large area has a maximum of a few tons of reserves? Can't you? ”

Chen Yue didn't believe in evil, and manipulated the robot to dig on the spot, and sure enough, under the acrylic layer of only a dozen centimeters, there was a black-gray rock.

"Hmm...... Look elsewhere. ”

The robotic prospecting team set off again on the desolate and dead dark red earth to the next place previously thought to have propylene reserves in satellite exploration.

But this time, the results were even worse. Not only was the propylene layer of poor quality this time – there were too many other debris mixed in, making it difficult to separate and purify, but it also had even fewer reserves.

Its thickness is less than 10 centimeters.

Chen Yue had a little ominous premonition in his heart.

Calmede is not very large, and the longest way to walk around it is less than a thousand kilometers. Chen Yue commanded the prospecting team to start from different directions and explore all the propylene storage sites confirmed by the satellite before.

Half a month later, the final result came.

With so many storage sites, there is no place where the propylene reserves exceed 1,000 tons.

Not even a thousand tons, what is it enough for! I'm afraid it's enough to boil some hot water to take a shower, and if you want to use it to generate electricity, isn't that funny?

This result really caught Chen Yue off guard. The planned construction of the power plant had to be delayed.

However, the power plant is a vital factory, the foundation of all future construction, without which Chen Yue could not do anything.

Even, when the fuel in the Glowing spacecraft runs out and there is no power supply, you will have to die!

We have to think of something else.

"You have to find new, combustible organic matter with enough reserves."

Chen Yue thought silently.

At this stage, the construction of nuclear power plants is simply not realistic. There's no fuel, there's no technology. Solar power plants are also not realistic, they are too far from the sun. As for wind power? More unlikely.

There is not even an atmosphere on Europa, where does the wind come from.

For the rest, geothermal power?

There is evidence that Ganymede has a hotter core, which is believed to be due to Jupiter's tidal forces. But with Chen Yue's current level of technology, there is no way to use it.

The only thing that can be used is chemical energy, to put it bluntly, by burning things to generate electricity.

Chen Yue mobilized the satellites that had been placed in the orbit of Ganymede with all his might, and carefully explored the surface of Ganymede, trying to find new organic matter.

Searching around, I did find many kinds of organic matter, such as methane, ethane, butane, ethylene and other up to thousands of combustible organic substances. But they all have a problem, the reserves are too small, and they are not as good as the previous propylene. And mining is difficult.

If you really want to mine them, you might need more electricity than you can generate.

Chen Yue's gaze could only be fixed on the unidentified areas that were also on the surface of Callisto, showing brown or green.

Exploration satellites couldn't confirm what it was. Chen Yue also believes that the probability that they belong to combustible organic matter is low. But now, I can only take a look.

Once again, the robotic prospecting team set off for the nearest spot that took on a large green patch. It took two days to finally arrive.

"What is this?"

Chen Yue manipulated the robot and almost slammed the camera to the ground. There, there is an opaque ice crystal-like object that takes on a pale green color.

A piece of it was carefully knocked off and placed in the heating chamber to be heated, so that a lot of gas was released. Chen Yue carefully inspected it, and was very surprised and surprised to detect dozens of combustible organic gases such as methane, ethane, propylene, butylene, etc.

"Wouldn't it? ……”

The huge surprise made Chen Yue slightly dizzy.

He remembered something that existed only on frozen celestial bodies.

Torin.

Torin is a copolymer molecule that is formed by the irradiation of numerous organic substances by ultraviolet light. This thing can't form on Earth, so there isn't any on Earth.

Don't...... These weird, green or brown things...... It's all Thorin?

Can Torin burn?

Absolutely. It is inherently the result of a complex process of evolution of many organic substances.

So......

The robot looked up and looked ahead.

In front of it, there is a green plain as far as the eye can see.