Today, the detection range of Explorer 8 has been increased to one million kilometers, which is a very terrifying number, because this distance is enough to walk for more than three seconds. Therefore, even if Explorer 8 orbits this wandering planet at one hundredth of the speed of light, it is enough for Explorer 8 to explore this planet very carefully.

As for the depth of exploration, the low-orbit space flight of more than 10,000 kilometers on this wandering planet is enough for it to explore the center of the wandering planet, so no mineral deposits on this planet can escape the "fiery eyes" of Explorer 8.

But even though Explorer 8 orbits a wandering planet at a speed of one hundredth of light, it doesn't take a lot of time to explore the planet. You must know that the radius of this planet is as high as 180,000 kilometers, and the flight altitude of Explorer 8 is 10,000 kilometers, that is to say, the orbital radius of Explorer 8 has reached 190,000 kilometers, and the distance of flying around the wandering planet has reached 1.2 million kilometers, which takes a full 400 seconds.

This is still only the time to fly around it, and if you want to explore the entire wandering planet, it is obviously not something that can be completed by flying in a circle. After all, this is a superplanet with a radius of 360,000 kilometers!

If valuable deposits are found on this wandering planet, it will take even more time.

In the Explorer 8 program, it will take at least three to five hours to complete the exploration of the planet. In other words, after exploring this planet, Yang Peiqi's space exploration journey is basically coming to an end.

Of course, if there are no valuable deposits on this wandering planet. That would probably take very little time. Because of the exploration plan of Explorer 8, it is necessary to roughly explore this planet first. If valuable deposits are found, detailed exploration is carried out. And if no valuable deposits are found at all. At most, it would take an hour to complete the probe. After all, a lap around this wandering planet is just over six minutes. If you want to roughly explore this wandering planet, it is enough to fly around it more than ten times with the ultra-high detection range of Explorer 8.

In fact, this wandering planet did not disappoint Explorer 8 or Yang Peiqi. Less than a minute before Yang Peiqi and the others flew around the wandering planet, Explorer 8 discovered seventh-level matter on this planet. In the following time, some Grade 6 and Grade 5 substances were discovered. It's just that. It was a little regrettable to Yang Peiqi that the highest level of matter on this wandering planet was level five, and there was no higher-level matter. Moreover, the fifth-level substances it contains are not much.

During the exploration process, Explorer 8 created a three-dimensional simulation image of the wandering planet, and marked the places where valuable materials were found, so as to facilitate the subsequent detailed exploration.

An hour later, after a full ten circles around the planet, Explorer 8 finally finished its rough exploration of the planet. And in the space in front of Yang Peiqi. A virtual three-dimensional simulation of a wandering planet is covered with no less than 100 markers of various colors. Among them, the red mark is a grade 7 deposit, and the orange mark is a grade 6 deposit. The yellow markers are grade 5 deposits. As for the lower-grade Grade 9 and Grade 8 deposits, Explorer 8 didn't mark them at all, because there were too many.

According to Explorer Eight. This wandering planet is supposed to be from an intermediate middle galaxy, or maybe even from a medium higher galaxy.

After a rough probing. Explorer 8 made a beeline for the closest point on the virtual image, which was a Tier 6 deposit.

After about a minute. Explorer 8 finally landed on the site of the Tier 6 deposit, and Yang Peiqi also set foot on the surface of this wandering planet for the first time.

Walking out of the spacecraft, Yang Peiqi saw the ground situation of this wandering planet. It is a planet with no signs of life, and the surface of the planet looks desolate. Because this wandering planet does not orbit any stars, looking up at the sky from the ground of this wandering planet, it is an endless darkness. However, it is precisely because of this reason that the starry sky of this planet is extremely beautiful, and the starlight in the sky, especially the Milky Way across the sky, will never be seen so clearly on Earth.

Next, under the guidance of Explorer 8, the craft continued to travel through the surface of the wandering planet, descending on one mineral deposit site after another.

In Yang Peiqi's view, the repair progress bar of Explorer 8 is improving at a speed that is almost visible to the naked eye. Especially when landing at a Tier 5 Deposit site, that restoration progress is even more obvious.

The journey to explore this wandering planet was even longer than Yang Peiqi imagined, and it was not until eight hours after the first landing on the planet that Explorer 8 explored all the sites that were originally marked.

And the results obtained are also extremely remarkable, because Yang Peiqi found that the repair progress bar of Explorer 8 has reached 28%!

The discovery of mineral deposits on this wandering planet has directly increased the restoration progress of Explorer 8 by twenty percent!

At the same time, Yang Peiqi has obtained more energy points than he expected, and the energy points he has accumulated now have reached 20,000 trillion!

You must know that before coming to this wandering planet, the energy points he accumulated were only 800 billion.

In other words, the mineral deposits found on this wandering planet are worth 12 trillion energy points!

This is a huge harvest that makes Yang Peiqi jaw-dropping!

After completing the exploration of this wandering planet, the time has arrived on June 24 on Earth, less than a day before Wimbledon starts.

It's time to go back to Earth!

When the aircraft soared into the sky and flew away from the ground of this wandering planet, Yang Peiqi finally couldn't help but be curious, and asked Explorer Eight: "Eight, have you swallowed all those high-grade substances?" ”

Explorer Eight was stunned for a moment, then said in a very pleasant tone, "I thought you could hold back all this time." ”

Yang Peiqi's distinct discovery. Explorer Eight's tone is much more humane than before. It's no longer that cold, almost metallic tone.

However, Yang Peiqi is obviously not concerned about the voice of Explorer 8 now. He smirked. He didn't answer, but his expression clearly showed that his curiosity wasn't diminished by Explorer Eight's words.

And after Explorer 8 said this, he did not pretend to be profound, but said the answer that Yang Peiqi wanted.

"Of course it can't be, this wandering planet is not the same asteroid that can be compared to the original. Although the asteroid is a complete planet, its diameter is only less than five kilometers after all, and the mass of the entire planet is also very limited, only less than 10,000 tons. However, this is a huge superplanet, and it contains a mass of more than seven substances. Although it is only a drop in the bucket compared to this wandering planet, its absolute mass is extremely huge. Let's put it this way, the total mass of the material above level 7 on this wandering planet is definitely not much less than that of the entire moon. ”

After listening to Explorer 8's words, Yang Peiqi was dumbfounded and said, "There are so many?!" ”

Yang Peiqi was really scared. In his opinion, although the volume of this wandering planet is large, there are only more than 100 material sites above level 7 marked by Explorer 8, which are distributed all over the surface of this wandering planet. Relative to the surface area of the planet, it is not worth mentioning at all. Therefore, the quality of these high-grade mineral deposits, even if they are large, cannot be much more. Who knew that Explorer 8 actually told him that the total mass of these mineral deposits was actually relative to the mass of the entire moon.

"Of course!" Explorer Eight said with great certainty. "If you think about it, this wandering planet has a radius of up to 180,000 kilometers. And the radius of the Moon is less than 1,800 kilometers, that is. The radius of this wandering planet is more than 100 times the radius of the Moon, and its volume is more than 1 million times the volume of the Moon. And this wandering planet is much denser than the moon, and its density is about the same as the earth you live on, that is, about 5.5 grams per cubic centimeter, which is 1.8 times the density of the moon. In this way, the total mass of this wandering planet is almost two million times that of the Moon. ”

Listening to Explorer 8 say this, Yang Peiqi didn't think that the total mass of those mineral deposits was incredible compared to the total mass of the moon. No way, who said that the absolute mass of this wandering planet is too great.

Yang Peiqi estimated a little, and the mass of this wandering planet reached one-fourteenth of the sun! Take the eight planets of the solar system as an example, even the largest Jupiter, compared to this wandering planet, it seems a little inadequate. You know, even Jupiter has less than one-thousandth the mass of the Sun.

Just when Yang Peiqi was amazed by this wandering planet in her heart, the aircraft had already reached endless space, far away from this wandering planet, and of course, far away from its attraction, and could start to make space jumps.

In fact, there are many restrictions on space jumping, the most important of which is that you must not be subjected to too much gravitational force, otherwise, it is very likely that you will have an accident or even get lost in another dimension when you make a space jump.

And the gravitational pull of this huge wandering planet that Yang Peiqi and they just flew away from is extremely huge. Think about it, its radius is nearly twenty-eight times that of the Earth, the density is about the same as that of the Earth, and according to the gravitational acceleration formula, its gravity is a full twenty-eight times that of the Earth, which is a powerful force that can collapse the human body. Even for the spacecraft that has reached level 3 under Yang Peiqi's seat, its gravitational pull cannot be underestimated.

And Yang Peiqi was able to walk on the surface of this wandering planet just now, and it was all thanks to Explorer 8. The energy shield it provides can not only protect Yang Peiqi, but also isolate the influence of gravity on this wandering planet. Otherwise, with Yang Peiqi's small body, it would have been crushed into a pile of meat puree.

Speaking of which, Yang Peiqi couldn't help but complain a little about those fantasy novels, under the pen of the authors of those novels, the planets inhabited by humans in other worlds are hundreds of thousands of millions of kilometers in diameter at every turn. In Yang Peiqi's view, these authors are completely lacking in physics and geography.

Because in many people's writings, the countries where the protagonists live are millions of square kilometers, and the area of these countries, compared to the entire continent, is not worth mentioning at all, and it is extremely small. In this way, the planets where human beings live are conservatively estimated to be hundreds of thousands of kilometers in diameter, and they may not be more than a few million kilometers, or tens of millions of kilometers.

However, these people don't want to think about how big the gravity of such a huge planet is. According to the density of the planet, its gravity is proportional to its radius, a planet of hundreds of thousands of kilometers, its gravity is hundreds of times that of the earth, and millions of kilometers of planets, its gravity is thousands of times that of the earth, is it still a place where human beings can live? Even if it's the immortal gods in their pen, they may not be able to stand it, right?

Not to mention the common sense of the geographical environment, such as the Eurasian continent and the African continent on the earth, how much is the area? It's only 10 million square kilometers. But even so, which of these continents is not mainly deserted in the center? If there is a continent that is hundreds of thousands of kilometers wide, then I don't know how large a desert there is in its central part?

Of course, some people have to say that the monsoon on those continents is very strong and can transport water vapor inland. Well, Yang Peiqi doesn't complain about this at all, because he is completely powerless. Think about it, even if it is a typhoon with a wind force of 12, how far away can it affect the land?

Oh, far away, when Yang Peiqi was talking to Explorer 8, the craft had already moved away from the wandering planet and started to jump in space.

The bizarre scene of the different dimension that he had seen many times in the past few days appeared in front of Yang Peiqi's eyes again, and when this qiē was far away from him, Yang Peiqi had already left the different dimension. What appeared in his field of vision was a blue planet. Not far from him, a much smaller planet was slowly revolving around it.

Although only a few days have passed, when he saw this planet again, Yang Peiqi had a feeling that he had not been seen for a long time, and at the same time, a warm current flowed through his heart.

In that boring interstellar flight, he was accompanied by endless loneliness. Especially for Yang Peiqi, who is used to living a life surrounded by beauties, this loneliness makes her feel even more tormented.

Fortunately, this qiē will come to an end for the time being.

The aircraft crossed a silver arc in the dark starry sky and headed straight for the blue planet.

Earth, I'm Yang Peiqi back! (To be continued......)