Scissors smiled treacherously: "This is my daughter-in-law, there are many comrades-in-arms, and there is only one daughter-in-law!" ”

The wolf cub hated: "You are ruthless enough!" ”

Jiang Xue smiled dumbly, glanced at the scissors fiercely and continued: "It is very common for stars that do not have a planet to have a single planet, but this kind of star is not born alone, but because of some natural factors, it eventually became a lonely person, and the main reason for this situation is the giant planet. ”

"Boss, do you remember when we lured away the stubborn beast, we ran into a hot Jupiter?" Jiang Xue asked suddenly.

"Of course I remember, the sky is full of iron clouds, and the rain is full of molten iron, how can I forget." Ye Fei replied immediately.

"Hot Jupiter, a gas giant orbiting the star at close range, as I understand it, is not a naturally occurring celestial body." Jiang Xue searched for the knowledge in her head, and kept considering the language, "It's a bit complicated, let's make a long story short, stars are formed from nebulae, and there are certain rules when stars are born, such as the main mass is concentrated on stars, because the huge gravitational pull ignites the fusion reaction of hydrogen, and other substances surround the stars, heavier elements are usually closer to stars, forming terrestrial planets, and lighter elements are distributed in the periphery of galaxies to form gaseous planets." ”

Ye Fei suddenly interrupted: "You mean that gas planets will not form near stars?" ”

"That's pretty much it." Jiang Xue nodded and admitted, "To be precise, the possibility of a gaseous planet forming in a near-star orbit is almost zero, such as if there are hydrogen atoms in the orbit of Mercury." Either sucked in by the gravitational pull of the star, or blown away by the solar wind, the chance of coming together to form a planet is very, very small. ”

"And how did Hot Jupiter form?" The wolf cub asked very cooperatively.

"That's what I'm going to say in a moment." Jiang Xue said, "The position of the giant planets is relatively far away from the stars, but this distance is relative, and many giant planets will be affected by the gravitational pull of the stars and gradually move closer to the stars." The orbit of the giant planet is getting closer and closer to the star, and when it crosses the orbit of the terrestrial planet in the inner galaxy, the terrestrial planet will be pulled by the huge gravitational pull of the giant planet, and the orbital speed will increase rapidly in a short time. Once the escape velocity of the star is exceeded. It will soon break away from its home galaxy and become a wandering planet completely. ”

Everyone suddenly realized that this was how the wandering planet came, and everyone's eyes fell on that planet. Imagine it rushing from its home galaxy into dark interstellar space. Slowly fly over a distance of light years like a homeless orphan for hundreds of millions of years.

I don't know how many years have passed in the universe. The planet was captured by the star in front of it, and the warm sunlight shone on the planet, and the various gases that had solidified on the planet's surface due to the extreme cold gradually melted. The atmosphere reappears, and then the water ice on the planet continues to melt, and the water circulation system on the planet's surface begins to function. The microbes that used to live on this planet are gradually revival, and some plant seeds that can hibernate in the extreme cold take root......

"I'll go, it's simply a history of the struggle for the planet to turn over." The wolf cub sighed, "But I'm a little strange, is the speed of the giant planet crossing the orbit of the terrestrial planet so fast?" Won't the giant pull the terrestrial planet to its side and turn the terrestrial planet into a giant moon? Or two planets colliding directly? ”

"Of course it's possible, but what does it matter? In either case, the planet is not in its original orbit. Jiang Xue pointed out the point of the problem in one sentence.

The wolf cub nodded thoughtfully: "It's because I think it's wrong, it's really like this, and I've gained knowledge." ”

He could already imagine that a giant planet that had left its orbit gradually flew towards the star, clearing all the terrestrial planets along the way, and after thousands of years, the giant planet became very close to the star, so close that the surface of the giant planet received an astronomical amount of thermal radiation, and the temperature on the surface of the giant planet rose enough to melt gold and iron.

And this is not the end of the day, the gravitational pull of the star will slowly swallow up the material of the giant planet, and eventually swallow the giant planet completely.

If there are no other planets outside the giant planet when this galaxy is formed, then there will be no more planets in this galaxy, and there will still be zài objects, only those small objects located outside the orbit of the giant planet.

The black bear glanced at Jiang Xue seriously and said, "Scissors, your daughter-in-law is really talented in our business, she should really be as good as Lao Lei in astronomy!" ”

The scissors pouted: "Are you praising or hurting people?" There is one in the whole army, and how many can you find out if you can drive a battleship stronger than my daughter-in-law? ”

The black bear laughed: "That's right! ”

At this time, there was still a short distance between the hull ship and the Dumiao planet, and the waiting leisure of the seed source crossed the hull ship to the position where it was only half a light hour away from the planet, and began to use the optical system to observe the situation on the planet.

The planet is a standard first-class habitable star, and the zoomed-in picture shows the white clouds in the atmosphere, the blue ocean, and the land of various colors, and the ice sheets at the north and south poles occupy a very high area, and it seems that the temperature of the lone planet is a little higher than that of the earth.

All in all, it's four words: mediocre, and you can't see anything different from other first-class habitable stars.

Ye Fei took a closer look at the night side of the Dumiao Galaxy, and said strangely, "Why is there no light at all?" Is that Shell Ship aiming for here? ”

At night when you look down on the earth in the universe, you can see the bright lights of large and small cities, and the more developed the area, the more dense the lights.

However, the night of the Dumiao Galaxy is pitch black, and there is no light at all.

Ye Fei turned his gaze to the side of the day again, and after continuously zooming in on the screen, the forest and grassland on the ground of the Dumiao Planet came into everyone's eyes, but they also couldn't find any traces of the inhabitation of the intelligent race.

"Weird, they can't all live underground, do they?" Ye Fei said suspiciously, "Xiao Xia, be optimistic about that hull ship, don't lose it!" ”

There was an oolong just a few days ago, Ye Fei didn't want to come again, no matter what secrets this planet had, as long as he looked at the herding ship, he would find the answer sooner or later.

Unable to find the problem, Ye Fei and the others had to wait patiently for the arrival of the Shell Ship, and after nearly an hour, the Shell Ship finally arrived near the planet and plunged headlong into the atmosphere without hesitation.

Ye Fei hurriedly concentrated on the Shell Ship. (To be continued......)