This supermassive black hole in the center of the Milky Way galaxy is the undisputed absolute core of the entire Milky Way. Because from the perspective of the Milky Way, all the stars, whether planets or stars, or star clusters, or gas clouds, actually revolve around it. Although the planets are orbiting the star, don't forget that the star also orbits the black hole.

It's like the king of a vast empire, and any powerful star, whether it's the rest of the black holes or the rest of the dense objects like neutron stars, is nothing compared to it. All matter in the galaxy is its subjects, subject to it and revolving around it.

Even if Xiao Yu had reached the level of a sixth-level civilization, Xiao Yu still couldn't get too close to it. Its gravitational pull is too strong, and if it gets too close to it, Xiao Yu's spaceships made with sixth-level civilization technology will also be torn apart by it.

Extremely strong gravitational pull means higher orbital speed. Therefore, the stars in the Silver Heart region are moving very fast, and they are all moving around it like crazy giant beasts. They have to move fast, and if they do, they're drawn into the black hole.

Here, there are aging giant stars, neutron stars, white dwarfs and other compact objects, and various interstellar dust clusters are also common here. Even, around this giant black hole, Xiao Yu observed extremely obvious X-ray bursts and extremely violent jets. This jet, starting from the black hole, shoots thousands of light-years into the universe along the poles of the black hole.

It was a large, unlucky mass of interstellar dust gas. Its total mass is about ten times that of the sun, and if it were somewhere else, it would have begun to collapse under certain initial conditions. The result is the formation of stars and planets that resemble the sun or the earth. But their position determines that they are not so lucky.

This cloud of gas was like a layer of mist, enveloping the giant black hole, which was accelerated by the black hole's terrifying gravitational pull and fell into the black hole in constant rotation. Extremely high velocities mean violent collisions, in which they gain so much energy that they can escape the gravitational field of the black hole, and eventually form a spectacular jet that stretches for thousands of light-years.

Everything here is insane, all extreme. Xiao Yu had never been in such a harsh environment before. The harsh environment here is probably enough to make it difficult for a fourth-level civilization to move an inch. In the end, the fifth-level civilization must be cautious, and only the sixth-level civilization that has initially mastered space technology can act here a little freely.

Faced with such a situation, Xiao Yu began to adopt a mixture of conventional sailing and curvature sailing. Because the gravitational field is too strong. And the influence of those crazy stars, in some places. Curvature navigation becomes dangerous. Encounter such a road section. Xiao Yu will give up curvature sailing. But no matter how bad the environment was, Xiao Yu never gave up his steps forward.

"According to the information obtained from the memories of the alien beasts of the Tree Clan, the remains of this seventh-level civilization in the mechanical direction should be in an orbit orbiting the black hole, between fifteen and twenty light-years, probably above the ecliptic plane of this black hole. This greatly narrows the scope. I just don't know, what kind of state does the relic of this seventh-level civilization in the mechanical direction exist? Whether it exists in a small universe like the ruins of the Torol civilization, or is it the base of a typical technological civilization. In the visible universe? How do I know if something is or isn't a relic of it? ”

This is an unanswered question, which makes Xiao Yu's search much more difficult. After all, the seventh-level civilization is beyond Xiao Yu's imagination, and when things come to this point, Xiao Yu can only take one step at a time.

If the error above and below the ecliptic surface is 0.5 light-years, then the thickness of Xiao Yu's search range is one light-year, and the distance limit of 15 light-years to 20 light-years limits the search area to a ring centered on the central black hole. The volume of this ring reaches 600 cubic light-years, which is similar to the volume of a cube with an edge of 8.5 light-years. You must know that the Earth is only about 1.5 light-years away from the Sun.

This is undoubtedly an extremely large search range. And the most important thing is that Xiao Yu doesn't know what kind of existence the relics of that seventh-level civilization are. If it was a speck of dust, and then the space technology used to construct a space in this speck of dust to place the ruins, Xiao Yu really had no way to find it.

However, in the memory of the alien beast of the tree clan, Xiao Yu did not obtain detailed information about the relics of the seventh-level civilization. In the absence of a way, Xiao Yu had no choice but to choose the most stupid method, extracted a number of billions of detectors from the small universe, and began to search in this area, filtering out all substances with certain special properties, and then further analyzing them to confirm whether they were the remains of a seventh-level civilization.

On the way forward, Xiao Yu took this into account, so he had built many detectors in advance, and now they are all released in one go. After being released, these probes immediately sailed in curvature and scattered into the vast and endless dark universe, starting to look for the things Xiao Yu wanted.

Immediately, an infinite torrent of data poured into the filtering server set up by Xiao Yu, useless information was discarded, useful information was classified, information about natural phenomena in the universe was stored, and abnormal information was sent to Xiao Yu's mind for analysis by Xiao Yu himself.

In the midst of such a search operation, a hundred years had passed again, and it was less than two hundred years before the message from the Tree Clan's alien beast's mind said that the time for the opening of the seventh-level civilization ruins was left. But Xiao Yu still didn't know anything about its location, and he still didn't even know its form of existence. On the contrary, some gains have been made from the rest. During this time, these probes scattered by Xiao Yu have explored more than 100,000 aging stars, more than 300,000 neutron stars of various types, nearly a million white dwarfs of different sizes, and observed more than 30 star collisions at close range. There is even a star-level black hole that is finally captured by the central black hole under the chaotic gravitational pull and then attracted to it. The two black holes merged. The small black hole disappears, and the mass and event horizon boundary of the big black hole increases a little again.

The fusion of two black holes is calm, unlike the collision of a star or a white dwarf or even a neutron star, which will burst out with such a huge amount of energy. Because it's obvious that black holes are misers, and nothing can escape from them by conventional means. Then the collision of two black holes will naturally not erupt into energy explosions, matter scattering and other things. On the contrary, some stars and dust clouds around these two black holes collided with each other and burst out some energy.

Even so, such a thing was an eye-opener for Xiao Yu. Xiao Yu felt that even if he couldn't find the relics of that seventh-level civilization in the end, he could harvest so much astronomical landscape information, and this trip would not be in vain.

The exploration operation is still continuing, Xiao Yu has a comprehensive understanding of all the information of Yinxin, making up for the gaps in his previous data on this aspect, feeling the greatness and vastness of the central black hole, and witnessing the magnificent and magical stories that have happened or are happening.

However, Xiao Yu still did not find the remains of the seventh-level civilization. At this moment, it has been less than fifty years since the seventh-level civilization relics opened. Xiao Yu can be sure that if he misses this time, he will definitely miss this precious relic.

"Could it be that thousands of years of preparation ended up like this? Could it be that this trip, I can only return empty-handed? The creation of a seventh-level civilization...... Even the most ordinary seventh-level civilization creation is an incomparably precious treasure for a sixth-level civilization, and it may even make me guess what is preventing a sixth-level civilization from advancing to a seventh-level civilization...... This opportunity is too precious and too rare. If I retreat like this, I really don't want to. ”

At this time, Xiao Yu received a message from his companion ghost clan.

"Xiao Yu, I feel a strong familiar aura from this direction, I can be sure that the alien beast Taihao, the ghost Taihao, and the technology Taihao are all here. This breath is so strange, but it seems to fit with some kind of existence I've heard of, well, this existence must be a python beast, and this is a crocodile beast, this is a guardian civilization...... God, these powerful beings have all gathered there, what are they doing there? ”

"Huh?" After receiving this message, Xiao Yu was stunned for a moment, and then reacted: "The most important thing here in the silver heart in the near future is the opening of the seventh-level civilization relics, these existences are the most powerful existences in the galaxy, they are all gathered there, can it be because of weishenme?" I'm sure that the direction of the appearance of the seventh-level civilization must be there. Taihao Alliance, Guardian Civilization, the remaining two alien beast civilizations are all here...... Good, good, ghost, get ready for battle, we're going there now! (To be continued......)