The process of entering cryogenic dormancy is definitely not a comfortable process.

When the temperature drops below freezing, some of the water in human cells will form needle-like ice spikes.

thereby puncturing the cell structure and damaging the health of human beings.

In order to overcome this problem, human beings have repeatedly experimented and demonstrated for a long time,

It wasn't until humans isolated a highly permeable ultra-low temperature organic solution from the Torin organic matter on Pluto's surface that the problem of human cells in the frozen state was solved.

At this time, Yang Meng is immersed in this low-temperature organic freezing solution.

Over time, the temperature in the cryo-dormant chamber has dropped to minus 70 degrees,

But this organic cryoprotectant remains in a liquid state.

However, at this temperature, the cryogenic protective refrigerant has become extremely viscous compared to the transparent state at high temperatures.

In this viscous liquid,

Yang Meng's body was slowly frozen,

At the same time, the data displayed on the surrounding screens for physiological indicators began to slowly decline.

As Yang Meng entered a dormant state,

The lights inside the spaceship were also extinguished, and only some screens flickered in most areas.

And not far from the hibernation pod,

Xiaoguang flickered slightly on his dormant platform,

It was as if I had been relieved from a long day at work, and suddenly relaxed.

As a point of light, it also flickered twice, then became darker, and finally became a faint point of light that no longer flickered.

……

I don't know how long it took,

The level of the organic protective solution filled with the dormant chamber began to drop rapidly,

With this change,

The various pipelines inserted in Yang Meng's body also began to input or extract liquids of various colors into and out.

Soon the liquid in the dormant chamber is emptied,

The temperature in the cabin also began to rise, and when the temperature exceeded 0 degrees Celsius,

The liquid that was fed into Yang Meng's body also began to flow faster.

The temperature in the cabin continues to rise,

The liquid also flows faster,

All kinds of pipelines, as if they are the blood circulation system outside Yang Meng's body, are running rapidly.

When the temperature exceeds 15 degrees Celsius

Yang Meng slowly opened his eyes, but because his brain function had not fully recovered, Yang Meng's eyes were a little blank.

After a few seconds, he blinked.

Some of the Mohu's consciousness appeared in his brain,

"The hibernation is over!"

He subconsciously wanted to sit up, but found that his body was not yet driven by consciousness.

Feeling this situation, Yang Meng's consciousness became more sober,

"Looks like this hibernation has been going on for a long time!"

The familiar feeling on his body made him sure of something, but he still couldn't be sure how long he had been asleep.

So I wanted to ask Xiao Yin,

But the strange slippery feeling in his mouth seemed to make him unable to open his mouth to ask.

He only reacted at this time, driven by human instinct, he wanted to speak, and he could communicate with Xiao Yin, and he didn't need to use his mouth to make a sound:

"Xiao Yin, how long has it been dormant this time?"

Yang Meng tried to communicate with Xiao Yin with consciousness,

But I didn't get a response from Xiao Yin,

Seeing that he lost contact with Xiao Yin, he did not show any panic, but said secretly:

"It seems that the synchronization between consciousness and body is not yet complete!"

In cryodormancy, the first thing to restore the various functions of human beings is brain consciousness.

But consciousness is restored, but the body still can't recover.

At this time, Yang Meng will be in this peculiar vegetative state,

For the average person, this state

It's scary, but for a professionally trained astronaut,

This misalignment of consciousness and body is also one of the training subjects for pioneer astronauts.

Only when the intensity of the nerve action potential recovers to a certain extent can Yang Meng contact Xiao Yin in his body,

Therefore, Yang Meng is waiting,

Because there is no physical restraint, Yang Meng's consciousness is also a little divergent.

Affected by this divergent consciousness, Yang Meng uncontrollably appeared a lot of ideas.

He thought of the short dormancy process from Rutan Star to Nanhe San before,

I also thought that human beings are studying cryo-dormancy technology,

Various problems arose:

Some people have necrosis of body tissues and limbs due to cryodormancy.

Some people's bodies have returned to normal, but the brain is not completely immersed in the protective fluid, resulting in brain damage, and eventually mental disorders, or hemiplegia.

For others, the body and consciousness are never synchronized, and the consciousness is always unable to control the body after waking up, and eventually becomes a vegetative person.

In short, cryogenic dormancy technology was a very dangerous technology for humans in that era.

Even if all kinds of protective measures are best,

But no one can guarantee that in such a long span of time,

After being frozen for several years or even more than ten years, the experimenters can still be intact.

In the early stage of the cryo-dormancy experiment, each opening of the hibernation chamber is like opening a blind box......

Although the research and development process of cryo-dormancy experiments is full of setbacks,

But with a large number of experiments, great progress can always be achieved.

In particular, with the assistance of cloning technology,

By cloning organs, humans can disassemble humans into different parts.

By cloning human organs and carefully observing the state of human beings in various low-temperature environments,

The low-temperature cryo-dormancy technology is further improved.

Even in the end, some forces in the human race, under the pressure of public opinion and morality, cloned unconscious human clones for experiments.

In the presence of a large number of experimental materials, the cryo-dormancy technology has been perfected.

But even so, there are still certain risks associated with this technology.

But just like drinking water can choke people to death, as long as the risk is controllable, then this technology can be called a relatively complete technology.

It is precisely because of this that

At this time, although Yang Meng's consciousness was trapped in his body like a vegetative person, he couldn't fully control his body.

But Yang Meng didn't have any panicked emotions,

Even if his consciousness was really trapped in his body due to some accident, making him appear in a vegetative state,

In the low-temperature cryo-dormancy technology, there are still many emergency solutions to solve such problems.

Thankfully, Yang Meng doesn't need to use emergency methods.

Xiao Yin's voice soon sounded in his ears:

"You're dormant for 15 years and 7 months!"

At the same time as hearing Xiao Yin's voice, Yang Meng meant that he had gained control of his body.

But when he heard Xiao Yin's answer, he couldn't care if there was anything abnormal in his body.

According to the time he set at that time, the time of his hibernation this time should be twenty years.

But now it has only been dormant for 15 years, which makes Yang Meng a little worried:

"Sure enough, it's happening again!"

Although he was a little worried, he seemed to have expected it in the face of waking up early.

After all, in the hundred years since he traveled from Earth to the Rutan Galaxy,

It is very rare to be able to take a full 20-year break, and it can even be said that in that 100-year period,

Every time during the cryo-dormancy, I will be awakened by Xiao Yin because of various things.

This time he can sleep for 15 years,

In his departure from the solar system to the present day all dormant weeks

In the middle of the term, it's a long period of time:

"So, what happened to Xiao Yin this time to wake me up urgently?"

"The next route of the spacecraft will pass through an unknown galaxy, and according to the pioneer exploration method, the astronauts need to be awakened to confirm the condition of the unknown galaxy!"

"Unknown galaxy? It's on the line!" After getting these two important pieces of information, Yang Meng's stiff face seemed to want to show some emotions at this time,

It's a pity that the emotional change in the face was not made in the end, but there was some surprise in the tone:

"What a coincidence!"

If the number of large celestial bodies is used to measure whether there is emptiness around the solar system

The density of the stars around the solar system can be said to be very low.

The closest star system to the Sun, 4.2 light-years away, is located in the Triad of Proxima Centauri,

If you take Proxima Centauri as the center and look for a star system that is closer to it, it is Barnard Star 6.5 light-years away, and Barnard Star is 5.9 light-years away from the solar system.

It can be said that in the range of six light years, the distribution of stars around the solar system is very sparse.

Even if this range is extended to 20 light-years, the density of the star distribution is still very low.

And this state of low-density stars is not the norm in the Milky Way.

And in the Milky Way, the stars can be very close to each other.

Like the famous Pleiades star cluster,

It is 13 light-years wide and contains more than 3,000 stars.

This state of the galaxy is unimaginable to mankind. Even if it's not an open cluster like the Pleiades,

In a normal spiral arm of the Milky Way, the density of stars would not be so low.

And this situation is likely to be related to the fact that the solar system is on the edge of the spiral arm of the Milky Way.

It is precisely because of this situation that

When humans travel to other galaxies, although they will be disturbed by cosmic dust and high-energy charged particles, some dangerous galaxies can be avoided from interfering with the navigation process.

In the previous waterway planning,

On the way from Nanhesan to the Ross 128 galaxy, you will not encounter other star systems.

But what Yang Meng didn't expect was that in the process of traveling to the Ross 128 galaxy, he encountered an unknown galaxy.

"It shouldn't be a galaxy!"

After listening to Xiao Yin's report, this was the first thought that popped into Yang Meng's mind,

With today's astronomical observation technology,

No matter what level of star,

How small the mass of this star is, as long as it can enter fusion, it emits a lot of light and heat

At a distance of 11 light-years from Earth, the star cannot escape human detection.

Only some cold wandering celestial bodies can escape human detection.

"But Xiao Yin said it was a galaxy......

At this time, Yang Meng stopped the thought in his heart, and Xiao Yin asked about the state of the galaxy in front of him.

"According to the radio astronomical telescope and the data from the gravitational detection device!"

"The galaxy ahead is composed of a host star and three larger bodies that can maintain hydrostatic equilibrium.

On top of that, there are these dust and debris bands around this galaxy!"

"It has been observed and measured that its host star is 16 times the mass of Jupiter!"

"The average temperature of the outer atmosphere of the host star is about 10 to 30 degrees Celsius!"

"Its gravitational perturbation range is 2.7 astronomical units!"

"The current distance to the ship is 370 astronomical units!"

"At the ship's current speed, it will pass within its gravitational perturbation range in 15 days."

「……」

And hearing what Xiao Yin said about these data,

Yang Meng's stiff face could finally show some emotions,

The expression on his face changed slightly, and he suddenly said:

"It's a brown dwarf!"

On the way to Rutan, Young

Meng has encountered this kind of celestial body,

A brown dwarf is a strange object that cannot be a star, but has a weak heat of its own.

The time for humans to discover this celestial body is very short,

It is only a hundred years ago, but it is the discovery of this celestial body that has provided great help for the breakthrough of human controllable nuclear fusion.

As for why such a celestial body appears, it is related to the process of star formation.

There are many models of star formation,

According to human observations, a model of formation that is generally accepted is related to nebulae.

Primordial nebulae, by accretion of nebulous material in the universe, the mass of the celestial bodies located in the center of the nebula will increase,

When the mass exceeds 75 times the mass of Jupiter,

The pressure and temperature in its heart can meet the minimum requirements for hydrogen and helium fusion.

And thus the smallest red dwarf star was born.

But just like human beings, some people come from wealthy families,

Some were born into poor families with no houses and no land.

The nebulae that form stars vary greatly in size,

Some nebulae are large enough,

can form blue supergiants far beyond the mass of the Sun,

But there are also nebulae that are congenitally deficient, forming a Rutan star with only 0.2 times the mass of the Sun.

But if the nebula is smaller,

No matter how hard you try, it's hard to become a star.

Brown dwarfs are such objects.

Because of his poor background, it is difficult to achieve great achievements without the help of external forces.

Of course, this is only one source of brown dwarfs.

There is also a brown dwarf, which parasitizes in star systems,

In the process of the nebula forming stars, eat some leftovers,

However, as the size increases, it becomes more and more difficult for this brown dwarf to be stably bound by the gravitational pull of the star.

It's easy to be swallowed up by a star, or thrown out by a star.

"According to Xiao Yin's detection data, the brown dwarf in front seems to be the primordial brown dwarf formed by the convergence of nebulae!"

The reason why Yang Meng made a judgment,

Or is it because the celestial bodies orbiting brown dwarfs have small eccentricities?

This means that these objects were not captured by brown dwarfs, but were reunited with brown dwarfs very early.

Looking at this strange black galaxy in front of you,

Yang Meng also understood the reason why Xiao Yin woke him up at this time,

According to the pioneer voyage exploration method, in the face of this galaxy that has never been detected by man,

He is obliged to do some exploration,

Of course, this obligation does not require him to slow down and enter this brown dwarf galaxy for detailed exploration.

Just send a few detectors,

And in addition to this reason,

The spacecraft he was on could crash into the gravitational perturbation range of the brown dwarf,

Therefore, the ship's course should also be improved.

"So, just because the brown dwarfs woke me up?"

Yang Meng sighed, opened the door of the sleeping cabin, and slowly sat up.