"I would like to hear the details. Update the fastest"

Yuan Chen ignored the secret of the scientists' humble words. It would never hurt to listen to them.

"Black holes gradually grow up by swallowing the surrounding matter. This is a very simple truth and an easy-to-observe fact. However, since the discovery of those ancient super black holes, our scientific field has always wanted to deeply understand what kind of process caused a small black hole to grow and expand so quickly after the Big Bang." Dark energy civilization scientists began to describe it in detail.

"If we can understand or even master the mysteries, then we can quickly feed black holes in the Milky Way one by one. In fact, several processes limit the rapid growth of black holes. For example, gases usually do not fall directly into black holes because they are often restrained and flow in a spiral shape, and finally enter the black hole bit by bit. Moreover, when the gas is finally swallowed by the black hole, the light it emits will cancel out with gravity, which will also slow down the flow of black hole food."

Speaking of this, scientists with dark energy civilization say that this is really a pity, otherwise they could cultivate and obtain more medium or large-scale black holes with technology.

But in fact, the more gas a black hole swallows, the stronger the light and radiation it emits. In the end, the black hole will starve because of its dazzling light. Because the light radiates outward will become stronger and stronger, so strong that it dispels all gas falling into the black hole, and may even cut off its "food" supply.

"Is there any specific difference between the growth of those ancient super black holes and the black holes in the Milky Way?"

While asking, Yuan Chen looked at the edge of the Dutal black hole. The interstellar matter was gathering into disks around the black hole, friction and heat generated to produce extremely high temperatures, emitting dazzling light, and producing magnetic fields to drive the matter to rush outward in the jet. This is a sign that the Dutal black hole is eating greedily.

"It's not clear, we're not clear!" said the scientist of the dark energy civilization. "We have designed a corresponding model: through rapid twists and turns, small black holes continue to sweep more and more gas into their orbits. After entering the orbit, the gas then begins a slow spiral motion. The model proves that the larger the black hole, the faster it will swallow the air flow. Moreover, this growth rate will increase at an exponential rate in the future."

"In addition, we guess that in the early days of the universe, the gas flow was very cold and dense. It was far from comparable to the thin gas flow we can see in the universe today!"

Yuan Chen silently and thoughtfully continued to listen to the other party’s description.

"We once thought it could be explained like this: supermassive black holes start with very small seed black holes and slowly grow by swallowing the surrounding gas and other interstellar matter. But later observations and research show that these are by no means the whole story of the growth of black holes. For these ancient beast-level black holes, we must find a more comprehensive theoretical explanation."

"How did these monster-level black holes grow so big quickly?" The dark energy civilization scientist glanced at Yuan Chen and other human scientists, and then asked and answered himself, "Theoretically, it takes at least 30 million years for a black hole to double its mass. If it wants to span from 100 times of an ordinary star to billions of times, the mass of a black hole needs to double at least 23 times."

"That is, it takes at least 700 million years for a seed black hole to grow into a super black hole. Moreover, we must tailor a continuous supply of gas for this seed black hole so that she can eat well."

Yuan Chen quickly calculated this time formula.

"Maybe. In fact, the surrounding areas of each black hole in the universe are basically chaotic and changeable. Therefore, it is not easy to swallow gas for such a long time, or difficult to achieve." Dark energy civilization scientists believe that it is unscientific to assume that a black hole can absorb gas from beginning to end.

"On the one hand, we cannot deny the special case. Perhaps there is such a rare environment at the edge of the universe, which has allowed those super black holes to eat for billions of years." Yuan Chen continued to make a guess, "On the other hand, with the increase in the number of super black holes discovered, special cases will not be enough to be a reason, so there must be some law that we have not yet known."

"Maybe, that's why I said, we don't have a standard answer," said the scientist of the dark energy civilization. "If the law is mentioned, then there is another possibility: we need seed black holes with greater mass."

"However, those seed black holes with larger mass are almost all concentrated in the outer space of the universe." Yuan Chen knew that those seed black holes with larger mass (middle-sized black holes) generally originated from supernova explosions in the first generation of massive stars, and these first generations of stars have long been far away from the edge of the universe as the universe continues to expand.

"In addition, we can also assume something bigger. For example, a super black hole originates from the collapse of a galaxy's core, but there are still many unsolved spears in this assumption."

The scientific research mission on the Dutar black hole is a huge project. Hundreds of thousands of scientists from the Expeditionary Force's scientific team are conducting large-scale experiments around the black hole and collecting and analyzing scientific research data. The related work lasted for nearly 10 years before 60% of the research mission was completed.

Meanwhile, in another corner of the Milky Way, the human fleet that carried out the Hiddener Project was expected to return to the original location through the space tunnel.

"Commander! Not good!"

This time, the capable soldier ran all the way to report to Yu Liang.

"What a panic!"

Yu Liang scolded that he always believed that a qualified soldier should be calm when encountering any situation, especially his scouts.

"Sorry, Commander." The capable soldier immediately raised his head and chest, raised his neck to report to Yu Liang, "There was no dark energy civilization space tunnel found at the pre-set location ahead! There was no relevant equipment."

"Are the coordinates accurate?" Yu Liang frowned and asked afterwards.

When other combat staff members in the command room heard this, they quickly gathered together.

"Accurate!!" The capable soldier replied without hesitation, "The monitoring team has repeatedly confirmed it."
Chapter completed!