Start sweeping the universe by rubbing the CPU with your hands.

This is the closest star system to the blue giant. In this star system, Han Yang also carried out extremely large construction projects. At this moment, this place became the forward base for Han Yang to continue observing the supernova after all the detectors were destroyed.

Here, it is about 3.2 light-years away from the blue giant star.

Originally, the blue giant star looked just like a relatively bright and shining ordinary star from here, its brightness was about the same as that of Venus when viewed from the earth.

But at this moment, its brightness has skyrocketed to the brightness equivalent to more than four hundred full moons at their brightest, and can even completely illuminate the earth of the planet where Han Yang is located.

You know, if you look at the sun from such a distance, the sun's light will be so dim that you can barely see it.

And this is just the result of it passing its peak and its brightest moment, and its brightness has begun to weaken. At the same time, this is only the energy it radiates in the visible light band.

In the neutrinos, gravitational waves, space dark energy, high-energy gamma rays, X-rays, ultraviolet and infrared bands, the energy it radiates and the kinetic energy exerted on stellar matter far exceed the visible light band.

Because of this, the bases and various creations built by Han Yang in this star system also suffered a wave of baptism.

Except for those creations hiding behind the stars and facing the direction of the supernova, a considerable part of them were directly destroyed even if perfect protective preparations were made in advance.

If there are lower-level intelligent life in this star system, there is no doubt that all intelligent life will be killed by the huge amount of radiation from the supernova in an instant.

In fact, Han Yang believes that within a range of 500 light-years from this supernova, all civilizations with a level of technology below Level will be destroyed as a result.

Even if it is not destroyed for a while, it will definitely be completely destroyed under the influence of various secondary disasters caused by the supernova explosion.

A sphere with a radius of 500 light years has a volume of approximately 5.2 million cubic light years. Such a vast space, just because of the explosion of a small star, was wiped out like bugs sprayed with pesticides.

Secretly sighing at the power of the supernova explosion, Han Yang continued to observe it.

Han Yang saw that a huge diffuse nebula had formed at the site of the supernova explosion.

The stardust that makes up the nebula used to be the stuff that made up the stars.

They were thrown out in the supernova explosion, and are now rapidly spreading toward the surrounding space at a speed of tens of thousands of kilometers per second.

In the core of the nebula, a black hole with a mass of 6.5 times that of the sun has been formed.

A black hole's event horizon boundary, or size, is determined by its mass. Through some simple calculations, Han Yang immediately concluded that the radius of a black hole 6.5 times the mass of the sun is only about 20 kilometers.

However, such a tiny star has now become the master of the entire vast nebula with a radius of about 1.1 trillion kilometers.

Because of the supernova explosion, all the material in the outer layers that originally made up the star gained enough speed to escape the star's gravity. But with the formation of the black hole, external matter continues to spread outward, and the matter closer to the black hole is pulled back abruptly without having time to escape.

At this moment, they are rotating crazily around the black hole and falling crazily into the black hole, continuing to increase its mass.

During this process, violent jets are ejected from the poles of the black hole, and powerful radiation directly illuminates the entire nebula.

Even though three years had passed since the explosion, Han Yang still did not dare to send a fleet or detection force to the vicinity of the black hole. Because he knew that the environment there was still unimaginably bad.

No matter what he sends there, he is only sending death.

Fortunately, with the destruction of up to 7000 billion detectors, Han Yang has collected quite a lot of data, and there is no need to go closer for observation.

Carefully storing these data and placing them under heavy protection, Han Yang left some observation power in this star system and continued to conduct follow-up observations from a distance of three light years, while his main energy was transferred to the second star system. above the observation point.

In about 1000 years, this star will explode. Moreover, according to normal development, the explosion of this star will be more violent than the previous explosion.

Because the star is more massive.

In this star system, Han Yang repeated the previous observation plan. The difference is that Han Yang has a larger number of detectors used to observe this star, reaching about one trillion.

Fortunately, Han Yang was given longer preparation time this time, so Han Yang had enough time to allocate enough resources and computing power to finally build these detectors.

A long millennium passed, and with another neutrino burst, Han Yang once again began to deploy large-scale detectors close to the star.

A few hours later, another violent explosion occurred, which was enough to surpass the brightness of all stars in the entire galaxy. The trillions of detectors that Han Yang had worked so hard to create were once again clean, and not a single one was left. All were destroyed.

And Han Yang also obtained a lot of data again.

After that, continuous observations of the remaining three stars also allowed Han Yang to further clarify their explosion times.

The most recent one exploded about 1500 to 1800 years from now.

The next one will explode between 3900 and 4500 years from now.

The next star exploded even further, 8000 years later.

Among them, Han Yang also made some unexpected discoveries.

Through further observations of the Canis Major dwarf galaxy, Han Yang also found two neutron stars orbiting each other and orbiting crazily.

Of the two neutron stars, the smaller one has a mass of 1.9 times the mass of the sun, and the larger one has a mass of 2.3 times the mass of the sun.

They are rotating wildly with each other, getting faster and faster, and getting closer and closer to each other. It is expected that they will collide violently within the next 3.6 years, and a black hole with a mass of times the mass of the sun will be formed.

The remaining mass of about 0.6 times the sun, most of which will be radiated into the universe in the form of gravitational waves. A small amount of the mass will be thrown into the universe as stardust.

These stardust will contain all elements heavier than iron nickel, such as gold and silver, that cannot be formed by normal star fusion.

This is undoubtedly the formation process of macroscopic black holes, and based on the different formation mode from stellar black holes, maybe something different can be observed from it.

But it was too long.

Although on an astronomical scale, ten thousand years or even one million years are just a fleeting moment, but for Han Yang, this period of time is still too long.

What's more, Han Yang's observation focuses on the formation process of macroscopic black holes themselves. Although it has high observational value, it does not involve the fundamentals of its preceding stars. Han Yang also gave up waiting for it. At this moment, Han Yang has been in the Canis Major dwarf galaxy for thousands of years. It has been almost 30,000 years since it left the Milky Way.

After comprehensively evaluating the quantity and quality of the data he had obtained at this moment, as well as the integrity of the observational data on the birth process of macroscopic black holes, and taking into account the time factor, Han Yang finally made a decision.

After observing another supernova explosion and the formation of a macroscopic black hole, Han Yang no longer waited, no longer stayed in the Canis Major dwarf galaxy, and went home directly.

Han Yang's computing power was transferred again, poured into the vicinity of the star that was about to explode recently, and he began to build a larger project again.

Because this time Han Yang had longer preparation time and it was the last observation, Han Yang doubled his observation power again and directly built up to two trillion various detectors. , and then laid them out layer by layer around the star.

The long 1700 years passed by in a blink of an eye. At this moment, the star exploded again, ending its dazzling life with a magnificent and unparalleled feast of light and heat.

Four years later, the energy of the supernova explosion reached four light-years away and destroyed the last detector laid by Han Yang.

Han Yang took back his computing power.

He knew that it was time to prepare for another intergalactic voyage and return to the Milky Way.

The preparations for returning home have already been completed, and there is no need to do any additional work at this moment.

But Han Yang still did some other things.

He selected about 100 node star systems in various parts of the Canis Major dwarf galaxy and built more than 100 automated bases.

These bases have industrial systems and self-maintenance systems that can operate fully automatically, and have relatively comprehensive external observation capabilities.

Their brains are artificial intelligence programs developed by Han Yang based on level five civilization technology.

Under the guidance of this program, these automated bases will continue to conduct various observations of the surrounding star fields. Every one hundred years or so, they will automatically launch an unmanned spacecraft carrying Based on the information observed during this period, it will travel to the Milky Way in regular navigation mode.

After more than 20,000 years of flight, they will reach the Milky Way. If all goes well, Han Yang will be able to recover these unmanned spacecraft and obtain the latest and most detailed information about the Canis Major dwarf galaxy.

Han Yang knew that this was probably of little use. Moreover, automated procedures are ultimately inferior to real wisdom.

There's no telling how long they'll last without their own care.

However, after traveling thousands of miles to the Canis Major Dwarf Galaxy, it would be a waste not to leave something behind.

This didn't take much time to go to Hanyang. As Han Yang embarked on a faster-than-light voyage towards the edge of the Canis Major dwarf galaxy facing the Milky Way, Han Yang had already completed it smoothly.

Advancing at 80 times the speed of light, Han Yang arrived at the very edge of the Canis Major dwarf galaxy just 20 years later.

There is a lone old red giant star here.

It is the most peripheral star among the Canis Major dwarf galaxy and the closest star to the Milky Way. It is like a protruding bridgehead.

It originally had four planets, but as it gradually expanded, three of them had been swallowed up by it. At this moment, only one gas giant planet with a mass similar to Saturn is left orbiting it alone.

Fortunately, there are still several large-mass satellites surrounding this gas giant planet, allowing Han Yang to complete the last supply here.

At this moment, after a long voyage of 1600 light years and having consumed most of its supplies, Han Yang's fleet once again returned to its peak.

So the huge fleet set sail again, flying in a direction away from the red giant and also away from the Canis Major dwarf galaxy.

At the moment before entering the super-light voyage, Han Yang turned back again and took a deep look at the small and dim galaxy that he had struggled for thousands of years.

What happened in the past years, war after war, brilliant and heroic explosions again and again, seems to be still vivid in my mind.

Now, I have got what I want.

Well, it's time to leave.

"Goodbye, goodbye. I hope I will have the opportunity to return here again in the future. By then, I wonder what you will become? Will there be another fifth-level strange life?"

Han Yang smiled freely: "It doesn't matter. If a new fifth-level strange life appears, I will destroy it again."

The huge fleet entered a state of super-light navigation, traveling towards the Milky Way at a speed of 80 times the speed of light.

More than 30 years later, the fleet stopped traveling at super-light speed and switched to conventional propulsion mode.

The journey back to the Milky Way is much easier than the original journey to the Canis Major dwarf galaxy.

Just like, it is very difficult to launch missiles from the surface to attack aircraft in the sky. You need to aim very accurately and constantly adjust the trajectory of the missile.

But attacking the ground from a plane is very simple. Even if you hit casually with your eyes closed, the attack will definitely land on the ground.

Although it's not that casual at the moment, it's pretty much the same.

Han Yang no longer needs to adjust the orbit frequently. He only needs to ensure that the spacecraft in the fleet can gather together and maintain 99% of the speed of light. In addition, he can just fly forward with his eyes closed.

Anyway, no matter how the orbit deviates, it will eventually fall into the Milky Way.

Because the Milky Way is so big.

Once he reaches the Milky Way and obtains material supplies, Han Yang can go wherever he wants.

This is why Han Yang is determined to stay in the automated observation bases in the Canis Major dwarf galaxy. Under the control of intelligent programs, the unmanned spacecraft launched by them can successfully return to the Milky Way.

Time passed slowly, and Han Yang saw that behind him, the Canis Major dwarf galaxy was getting darker and darker. Ahead, the Milky Way is getting brighter.

In the vast void, Han Yang's fleet moved forward. (End of chapter)