Alpha Star Centauri BB1, that is, the sand star in the mouth of Yuan Haochen and others. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

It is the second star discovered by the Extraterrestrial Civilizations Project in the Alpha Centauri system.

It is located in the habitable zone of the star Alpha B Centauri, with a volume of 308% and a mass of about 2.6 times that of Earth.

Although liquid water does exist on Sand Star, and it is much larger than Earth's, the planet's actual water reserves are only one-twentieth that of Earth.

Therefore, there is no ocean on the Sand Star, only many oases or small lakes dotted around the planet.

Most of the liquid water on Sand Star is in the form of groundwater.

Yuan has calculated that in the Centaur Alpha binary system, when the planet's orbit is less than two astronomical units (about 300 million kilometers) from the star, an Earth-like planet may exist in a habitable orbit for 1 billion years.

Although the mass of Sand Star is larger than that of Earth, its orbit is only about 1 astronomical unit. All things considered, it will also exist in the habitable zone for more than 800 million years, but its surface temperature will get lower and lower in the later stages.

Speaking of which, this is indeed an incredible phenomenon.

We can put ourselves in this position: if Hou Yi only shot down 8 suns in the end, then there would be a strange scene of two suns in the solar system.

What impact does this have on the planet?

Due to the influence of the binary gravitational system composed of two suns, the orbit of Jupiter (5.20 AU from the Sun), Saturn (9.54 AU from the Sun), Uranus (19.22 AU from the Sun), and Neptune (30.06 AU from the Sun) cannot have absolute dominance over them because they are far away from the original Sun.

Therefore, it will not be long before the four of them will be thrown out of the solar system one after another under the gravitational struggle of the two suns, and become orphans wandering the world.

Mercury (0.38 AU) is so close to the Sun that it will be ruled forever and cannot be stripped away.

The remaining Venus (0.72 AU), Earth (1 AU), and Mars (1.52 AU) are on the edge of the original Sun's gravitational domination, and they may be slowly pulled out by the binary gravitational system and gradually move away from the original Sun.

Mars may be abandoned in the time frame of tens of millions ~ hundreds of millions of years, and the Earth and Venus will be abandoned for a much longer time, possibly billions of years (without considering the factors of star destruction).

Therefore, Sand Star and Dung Star are currently in the process of being slowly dragged outward by the gravitational pull of the binary star, and perhaps in a few hundred million or billions of years, they will also disappear from their original orbits.

The reason why the climate on Sand Star is so dry is also related to the effect of its orbit from the inside to the outside.

......

The surface of the sand star is still so barren, in addition to the overwhelming gravel, there is only the wild sand that covers the sky and the sun, and only near the edge of the oases can you gradually find some vitality.

However, if you can move your gaze to tens of kilometers or even hundreds of kilometers deep under the surface, you will find that there is a hole in the underground world of this planet!

In the middle of that slightly smaller oasis, a bay of pale blue water lies quietly, and along the lake water penetrates down to a depth of about 35 kilometers, you will find a completely dark underworld.

It's a bleak underground city, where there is no concept of light at all.

This underground city is one of the smallest underground cities on the planet, but its size is still very large, radiating in all directions.

In the middle of the underground city, there is a separate, very large space.

There is a circle of strange creatures in the space, and there are at least ten or more in this circle.

In the middle of the circle, and on a bench that resembles a seat on the periphery of the circle, there are two strange creatures.

“#￥！ ￥%......”

The strange creature in the seat swayed as it emitted a long series of sound waves.

The strange creature enclosed in the circle was one of the two that had appeared in the oasis before.

“##！！ %：（......”

The strange creature that was surrounded also began to emit a long series of sound waves, but at this time, he was firmly pressed to the ground by the other strange creatures, and he also looked very weak.

"#¥%##......" The strange creature in the seat suddenly moved forward a position, and the tentacles on its body began to wave wildly.

“#￥!!!” The bizarre creature that was held down seemed to be arguing about something.

“##**！！ ......”

The tentacles of the strange creature on the seat danced more violently, and the upper end of the ta's body began to twist in a continuous circle.

It looks funny.

Suddenly, the strange creatures in the circle also began to wave their tentacles, and even more exaggeratedly, they began to use their tentacles to whip the one who was pressed to the ground.

That's right, can you imagine that 40 trillion kilometers away from the earth, a gang fight is being played?

At the same time, in a passage at the edge of the dungeon, another smaller, bizarre creature that appeared in the oasis was running forward with all its might.

Why run?

Because there is a large wave of strange creatures chasing after him.

It does sound like a heart-pounding chase for the dead.

However, in reality, this is not the case.

If you look at this desperate chase from the perspective of an earthling, you will feel very speechless.

Imagine that, from the top half of their torsos, these bizarre creatures are flailing their tentacles frantically with their arms flailing, and the frequency of the waving is indeed surprisingly fast. However, if you look at the lower part of the torso, you can see that they move at almost the same speed as a toddler on Earth.

This is above and below, one fast and one slow, and the strong contrast is hard to imagine.

Eventually, the strange creature that appeared in the oasis moved to an underground river.

"Plop" sound.

He jumped without hesitation, or maybe he would have been more in line with his movements at the time.

As soon as the strange creature entered the underground river, it was like a fish in water, and all its tentacles immediately spun and worked at high speed like propellers.

The strange creatures quickly disappeared into the underground river...... (To be continued.) )