Nine Hundred and Fourteen Useless Information (2)

The reasons for leaving are varied, and the intelligence does not record them in detail, only mentioning several typical galaxies.

Ye Han is particularly interested in this aspect, so he reads it very carefully.

The first stop of the aliens after leaving their home galaxy is a long-lived red dwarf star, which is the closest star to the aliens' home star, and the relationship between the two is equivalent to that between the sun and Proxima Centauri.

The aliens found several planets there and planned to settle there, but when they flew to the end of the land, they found that the red dwarf was too barren. Whether it was stars or planets, light elements dominated there. Only a small amount of iron could be found in the core deep in the planets. The elements above iron were incredibly rare, much lower than the gold reserves on Earth.

For alien civilizations that are extremely lacking in heavy elements, this is simply an unbearable nightmare, so the aliens rushed to the next target without hesitation.

Seeing this, Ye Han couldn't help grinning. He was no longer the soldier who knew nothing about astronomy. He knew very well that Proxima Centauri was a red dwarf star. Among many science fiction works, there were indeed many themes about immigration to Proxima Centauri. Now he really wanted to ask those authors, do you know what the situation of Proxima Centauri is?

The intelligence did not mention the details of the second and third targets, anyway, they were also abandoned by the aliens.

The fourth target is a good place, a yellow dwarf similar to the sun, with five planets, one of which is located in the habitable zone!

It is said that with the aliens' technological level, it is not difficult to transform this planet into an ecological planet and settle it, but the problem is the galaxy environment. The Kuiper belt in the outer layer of the galaxy is wide and thick, and at least hundreds of comets are always running inside the galaxy. Every planet is scarred by comets.

You don't need to ask to know that this is a young galaxy that has just been formed.

Aliens are not afraid of the young galaxy, but they can't stand the fact that the five planets are all terrestrial planets. Even if there is a giant planet outside, it can block the comet, right?

Finally, the aliens had no choice but to give up this young and dangerous galaxy.

Next was the seventh target, which was also a very suitable galaxy at first glance, but after entering the galaxy, it was discovered that the planet in the habitable zone rotated too slowly and had almost no magnetic field. Unless the aliens' shells could resist the high-energy rays in interstellar space, no one could save the planet.

Another time, the conditions in all aspects of the galaxy were very good, except that there was not a planet in the habitable zone, but a pair of binary stars orbiting each other!

The situation of this pair of binary stars was also good. They were both potential ecological stars with liquid water, and the magnetic field strength and gravity strength were good. It can be said that they were the best choice for aliens to encounter after leaving the mother galaxy.

However, the distance between the binary stars was less than 200,000 kilometers, and the gravity of the two planets was entangled with each other. Every time the sea water rose, it was as exaggerated as a tsunami. When the other planet was overhead, the gravity under the feet was significantly reduced, and vice versa, the weight would increase accordingly.

This was not a big deal. The key was that it was not only the tides that followed the gravity, but also the earth and the liquid core!

The gravity of the two planets ripped each other's land, and the most direct result was that the two planets were covered with volcanoes. Countless active volcanoes appeared one after another. All volcanoes that turned to the opposite side would erupt on time, and then gradually stop after turning away from the opposite side, just like two giant spherical starships spraying each other with cannons.

If it was just like this, the aliens would be able to 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 to each other, like the moon, always facing each other.

At that time, the two planets will become yellow eggs together, and no one knows what the result will be.

The aliens had no choice but to give up this galaxy, but the starship stayed there for decades, and left reluctantly after obtaining a lot of resources from the planets there.

Without those resources, the starship might not be able to persist in the solar system.

The aliens have also encountered some more bizarre situations.

For example, there is a super-large giant planet next to a star. Because of the gravitational influence of the giant planet, this star is very active, with flares, spots, and solar winds. If such a galaxy can also evolve an ecosystem, it must be exactly the same as the legendary hell.

There is also a giant planet in the habitable zone. The giant planet has a satellite with great transformation potential, but the aliens have encountered the old problem again. The heavy element content of this galaxy is too low. It is not impossible to settle there, but the scarce heavy elements cannot support a few generations.

It is better to leave early than late, and the aliens left 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.

And these targets have some less accurate common points. They must be single stars, and binary stars or clustered stars are all excluded; they must be yellow dwarfs, too small or too large; the number of planets cannot be too small, and there must be a giant planet shield in the middle of the galaxy; 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 searching according to this standard, but they finally found the solar system and the Earth. Considering all aspects, the Earth meets the aliens' new home standard.

Thinking of this, Ye Han was extremely puzzled. Could it be that the aliens' home planet has the same environment as the Earth? This is not necessarily too coincidental, right? Or is it that only an environment similar to that of the Earth can evolve highly intelligent creatures?

If this is the case, when humans leave the solar system and migrate to the interstellar, they don't have to look for a suitable galaxy by themselves. They can greatly increase their success rate by referring to the standards set by the aliens to find the target.

For a moment, Ye Han suddenly felt a sense of superiority... The birth of life must have a coincidence, but it must also have a certainty. So, are intelligent creatures like humans and aliens coincidences or inevitability? Or, are intelligent creatures a prank of the universe?

Unable to figure out the reason, Ye Han simply reported this information to Beidu. Anyway, Beidu has experts, so let them worry about this matter.

Well... I guess after defeating the aliens, humans will not be far from interstellar migration.

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 that, he found that the communication signal came from hundreds of kilometers away.

At this time, he heard a voice: "Captain, I'm Luo Qi, we're back!"

Ye Han jumped up: "Luo Qi? You're back? How's the situation?"

Luo Qi sighed: "Let's talk about it when we get back."

Ye Han's heart sank to the bottom of the valley in an instant.