Galaxy 6, April.

The earth's glacial age is becoming more and more obvious, and the global sea level has dropped by 5.3~5.4 meters at this time.

Homo sapiens, for its part, has not been affected too much, and is still focused on exploring other planets and guarding against extraterrestrial civilizations.

The free world has completely fallen apart, and the disintegration of America is a foregone conclusion, and at present, North America has broken down into a total of 7 forces.

Although the Commonwealth of Europe regained the Kingdom of Britain, their losses were very serious, such as the Nordic region and the Baltic Sea coast, where there was basically no way to carry out open-air agricultural production.

Other forces were also squeezed by the ice age, and there were varying degrees of decline.

In particular, the Kangaroo Country, which was isolated and surrounded by Homo sapiens, at this time their economy had completely collapsed, and agriculture was barely self-sufficient, but the good life of lying down and making money was gone forever.

Homo sapiens is not in a hurry with Oceania.

After all, the "good days" of the free world are yet to come.

It is only the beginning of the ice age, and in the next 100 years, the ice age will gradually develop to its peak, when the global sea level will drop by 90~100 meters, the ice sheet glaciers will develop wildly, and the inland areas will become drier and colder.

The core business areas of Homo sapiens are all in the equatorial region, and no matter how much the glaciers develop, there is no way to reach the equator.

What's more, Homo sapiens is more than an order of magnitude more resistant to the natural environment and climate than the free world.

Now Homo sapiens doesn't need to be in a hurry at all, anyway, time is on the company's side.

And the top priority of Homo sapiens is to complete the testing and experimentation of the flame of civilization as soon as possible.

In the distant orbit of Saturn.

A huge space station is being arranged, which was officially completed in July last year and was supposed to serve as a comprehensive scientific research base for Saturn.

At this time, due to the needs of the company, it was temporarily adjusted to a biotechnology research base.

Three different versions of the civilization fire are being intensively debugged.

It is estimated that one of the civilization sparks will be able to complete the debugging in the middle of next month, and then carry out the sowing experiment.

Although the research direction of this scientific research base focuses on biotechnology highly related to the fire of civilization, it does not mean that there are no other research projects.

For example, the "Comet Project" is being tested at this time.

I saw an irregular star with a radius of about 50 meters, slowly floating in the void about 2 million kilometers away from Saturn.

Around this star, there are also 5 spaceships.

These five spacecraft use high-powered fluorescent lamps and radiation generators at different distances to simulate the radiation and energetic particles of stars, and perform various irradiation tests on stars.

In this way, various trajectory shifts are taking place in the star.

This is the "Comet Project", the purpose of which is to use various covert methods to achieve directional movement of stars.

Since it is necessary to ensure that the flame of civilization can reach its destination safely, it is necessary to find ways to reduce the appearance of various artificial thrusters.

Especially after entering the edge of the planetary system, none of the various thrusters with obvious characteristics can be used.

The plan is for the Tinder of Civilization to disguise itself as a small asteroid, encased in rock formations and ice crusts, ensuring that it can dive into the planetary system without warning

Although before entering the planetary system, the auxiliary power system will definitely give the camouflage star a relatively high movement speed, ensuring that it can enter the planetary system as soon as possible.

However, once the camouflage star is separated from the auxiliary power system, it means that the camouflage star cannot obtain the power blessing on the surface.

How does that asteroid change its direction without human intervention?

Answer: The gravitational pull of the planets along the way, the stellar radiation, and the collision of asteroids with each other.

Among these three schemes, planetary gravity can only be tricked once or twice, otherwise it is easy to attract the attention of extraterrestrial civilizations.

Asteroids colliding with each other will damage camouflaged stars, and they must not be used.

What can be directly exploited is stellar radiation.

The reason why stellar radiation can change the trajectory of a small planetary body is due to two points.

One is that different substances and colors have different absorption and reflectance of light, which will cause different radiation pressure to be received at different locations of the star.

In the case of spherical stars, the effect of radiant light pressure is not too obvious; If it is an irregular star, the effect of radiation pressure will become more obvious.

Another point is that some of the asteroids themselves are related, especially the core components of the comet, water ice, dry ice, and silicate polymers, which will cause the comet to be radiated by the star, and will eject water vapor and carbon dioxide airflow, thereby pushing the star to deviate from the trajectory.

These two natural orbit change mechanisms are the items tested this time.

The civilization fire can regulate the color and light absorption rate of each part of the comet's surface through a part of the comet's dense cells, so as to control the direction, scale, and radiation light pressure of the star's water vapor and carbon dioxide jets.

Then, through the jets of carbon dioxide and water vapor, as well as the radiation pressure, the trajectory of the star is changed.

Judging from the current test situation, as long as it is a comet-type star, these three elements can be used to regulate the trajectory of the star and let the star go to a suitable planet.

This way of changing the trajectory of motion is very subtle, because it is itself a normal phenomenon that exists in the universe.

As long as the regulation is not too obvious, the amplitude of the changed movement trajectory is not too large, and the time is not too short, it will not attract attention.

After all, this kind of small comet is also a relatively ordinary celestial body in various planetary systems, and its own danger is not high, so it naturally does not attract too much attention.

Even a first-level civilization with a similar level of technology as Homo sapiens would be difficult to spot a disguised comet at close range.

As for the second-level civilization, its means are not very clear to Homo sapiens, but Homo sapiens does not want to guess either.

Anyway, at this stage, the probability of Homo sapiens encountering a second-level civilization is too small.

In a series of radiation exposure tests.

The artificial comet used for experimental testing is okay.

Time passes day by day.

The Saturn research space station is testing the performance of artificial comets and studying the carriers of the flame of civilization.

Before you know it, it's the middle of May.

At this time, the beta version of the first civilization fire was finally created by scientific researchers.

After completing the development of the beta version of the first civilization fire, the scientific research base planted this civilization fire into an artificial comet as soon as possible, and then directly launched the artificial comet.

The fast-flying artificial comet adjusts its color and light absorption to one of Saturn's large rocky moons.

Finally a week later.

The man-made comet successfully fell to the surface of the moon with the help of the satellite's gravitational pull.

As an artificial comet falls on the surface, it means that the seeds are planted and the next step is for the fire of civilization to take root.

In order to observe the process of the rooting and germination of the fire of civilization, the Saturn moon has been surrounded by a large number of artificial satellites.

The civilization spark inside the impact crater finally confirmed the safety of the surroundings, and began to activate various working cells, ready to germinate.