There were various reasons for leaving, and there were no detailed records in the intelligence, only a few typical galaxies were mentioned.
Ye Han was particularly interested in this aspect, so he watched it very carefully.
The first stop for aliens after leaving their home galaxy is a long-lived red dwarf star. It is the closest star to the alien's home star. The relationship between the two is equivalent to the sun and Proxima Centauri.
The aliens discovered that there were several planets there, and planned to settle there, but when they flew to the ground, they discovered that the red dwarf star is really barren. Both stars and planets there are dominated by light elements, and only the cores deep in the planets have
Only a small amount of iron can be found. The elements above iron are incredibly small, much lower than the gold reserves on the earth.
For alien civilizations that are extremely short of heavy elements, this is simply an unbearable nightmare, so the aliens rush to the next target without hesitation.
Seeing this, Ye Han couldn't help but grin. He was no longer the big-head soldier who knew nothing about astronomy. He knew very well that Proxima Centauri was a red dwarf star, and there were many themes of immigrants to Proxima Centauri in many science fiction works.
, he really wants to ask those authors now, do you know what is going on in Proxima Centauri?
The intelligence did not mention the details of the second and third targets. In short, they were abandoned by aliens.
The fourth target is a good place. A yellow dwarf star similar to the sun has five planets, one of which is in the habitable zone!
Ordinarily, with the technological level of aliens, it would not be difficult to transform this planet into an ecological planet and settle it. But the problem lies in the galaxy environment. The Kuiper Belt in the outer layer of the galaxy is wide and thick, and at least hundreds of comets are running inside the galaxy at all times.
, every planet has been scarred by comets.
You don't need to ask to know that this is a young galaxy that has just formed.
Aliens are not afraid of the young age of the galaxy, but they can't bear the fact that those five planets are all terrestrial planets. Even if there is a giant planet outside, it can block the comet, right?
In the end, the aliens could only abandon this young and dangerous galaxy.
Next is the seventh target. This is also a very suitable galaxy at first glance. However, after entering the galaxy, we discovered that the planet in the habitable zone rotates too slowly and has an almost non-existent magnetic field. Unless the alien shell can
Resist the high-energy rays in interstellar space, otherwise no one can save the planet.
Another time, the conditions of the galaxy were very good in all aspects, except that the habitable zone was not a planet, but a pair of double stars orbiting each other!
The situation of this pair of binary stars is also good. They are both potential ecological stars with liquid water. Their magnetic field strength and gravitational strength are both good. They can be said to be the best choice for aliens to encounter after leaving their parent galaxy.
But the distance between the two stars is less than 200,000 kilometers. The gravitational pull of the two planets is entangled with each other. Every rising tide of the sea is as exaggerated as a tsunami. When another planet is overhead, the gravity under the feet is significantly reduced. On the contrary, the weight will also be
Increase accordingly.
This is nothing, the key is that it is not only the ocean tide that follows gravity, but also the earth and the liquid core!
The gravitational pull of the two planets tears each other's earth apart. The most direct result is that the two planets are densely covered with volcanoes. Countless active volcanoes will appear on the stage. All volcanoes that move to the opposite side will erupt on time, and they will erupt on time when they turn away from the opposite side.
Then it gradually stopped, like two giant spherical starships firing cannons at each other.
If that's the case, aliens can't overcome it. But the more troublesome thing is that the distance between the two planets is too close. One day, they will be tidally locked with each other, always facing each other like the moon.
By that time, the two planets will turn into yellowish eggs together, and no one knows what the consequences will be.
The aliens had no choice but to reluctantly abandon this galaxy, but the starship stayed there for decades and obtained a large amount of resources from the planets there before reluctantly leaving.
Without those resources, the starship may not be able to reach the solar system.
Aliens have also encountered some bizarre situations.
For example, there is a very large giant planet next to the star. Due to the gravitational influence of the giant planet, this star is very active, with flares and solar winds raging. If such a galaxy can evolve an ecosystem, it must be exactly like the legendary hell.
There is also a giant planet in the habitable zone. That giant planet has a satellite with great potential for transformation, but aliens have encountered the same problem again. The content of heavy elements in this galaxy is too low, so it is not impossible to settle there.
, but the scarce heavy elements cannot last for several generations.
It is better to leave early than to leave late. The aliens disappeared again.
Later, the aliens seemed to have mastered certain rules and no longer chose targets casually. They would rather go farther at a time and choose the right target.
These targets have some not-so-accurate things in common. They must be single stars, double stars or clusters of stars. They must be yellow dwarfs, either too small or too big. The number of planets cannot be too few, and there must be giant planets in the middle of the galaxy.
Shield; the age of the galaxy cannot be too low, otherwise the celestial system will be unstable; the most important point is that the heavy element content must meet the standard!
Ye Han didn't know how long the aliens had been looking for according to this standard, but they finally found the solar system and the earth. Judging from all aspects, the earth met the standards of the aliens' new home.
Thinking of this, Ye Han was extremely confused. Could it be that the alien's home planet has the same environment as the earth? This is not necessarily a coincidence, right? Or, only in an environment similar to the earth can higher intelligent creatures evolve?
If this is the case, when humans leave the solar system and immigrate to the interstellar space, they will not have to look for a suitable galaxy by themselves. As long as they refer to the standards set by aliens to find targets, the success rate will be greatly improved.
For a moment, Ye Han suddenly felt a sense of superiority... The birth of life must have a coincidence, but there must also be an inevitability. So, are intelligent creatures like humans and aliens a coincidence or an inevitability? Or should we say?
, are intelligent creatures a hoax of the universe?
Unable to think of a reason, Ye Han simply reported this information to Beidu. Anyway, Beidu was full of experts, so this kind of thing should be a headache for them.
Hmm... Presumably after defeating the aliens, humans will not be far from interstellar immigration.
Just after sending the information away, Ye Han suddenly received a communication request. He immediately turned on the radio: "I am Ye Han!" After saying this, he discovered that the communication signal came from hundreds of kilometers away.
At this time he heard a voice: "Captain, I am Luo Qi, we are back!"
Ye Han jumped up: "Luo Qi? Are you back? How is the situation?"
Luo Qi sighed: "Let's talk about it when we get back."
