Start with a planet hitting the earth

"With your current size and mass, you can swallow 80% of the celestial bodies in this galaxy." Ya's voice came.

"80%? It sounds like a lot." Chen Yuan said: "Then can I swallow neutron stars and black holes?"

Ya said: "Maybe, you can try, but the risk factor is not low."

"I'm worried that before you have time to touch the neutron star or black hole, your body will be crushed into protons by the pressure near them."

Chen Yuan wanted to try it, but now he thought about it, he gave up.

After all, if he swallowed like this, his mass would definitely exceed that of neutron stars and ordinary black holes. Since there is an easy way to go, Chen Yuan is not a fool to deliberately take the difficult way and gamble his life.

Chen Yuan said: "You said, if I continue to swallow, can I become a black hole?"

"Is there any need to say this? As long as your mass is large enough, you can become a black hole." Ya answered casually.

"Really? Aren't black holes high-density celestial bodies formed when some massive stars evolve to the end, when hydrogen and helium are burned out and the center collapses? If I keep replenishing mass like this, won't the hydrogen and helium in my body be unable to be consumed? Can I become a black hole in that way?" Chen Yuan had learned some astronomy before, and he also had some understanding of the formation of black holes.

Now Chen Yuan is a blue dwarf. If Chen Yuan does not devour other celestial bodies to replenish his own matter, he will continue to consume the hydrogen in his body to form nuclear fusion. When the hydrogen is consumed, he will start to consume helium.

Then it will expand violently.

Form a blue giant.

When the blue giant consumes the helium, a supernova explosion will occur, and at that time a black hole may be formed.

But now Chen Yuan has been devouring other celestial bodies, that is, he has been replenishing hydrogen.

In this case, Chen Yuan will continue to consume hydrogen, there will be no expansion, no collapse, and no supernova explosion. How can he become a black hole?

"You are wrong. To become a black hole, you do not have to evolve completely. As long as your mass exceeds a certain limit, your body will automatically collapse and form a black hole. According to your current mass, if you multiply it fifty times, you will collapse into a black hole." Yasui explained.

Chen Yuan is a rookie in astronomy after all. He has only read a few books occasionally, and his previous theory was guessed by himself.

In fact, black holes do not have to evolve through massive stars to form.

As long as the mass of a star exceeds a certain value, the nuclear fusion or helium fusion it produces cannot withstand its own gravity, then it will automatically collapse from the center and form a black hole by itself.

And this process does not need to wait for the end of nuclear fusion and helium fusion.

There is no fixed value for that value. It can be produced when it is about 150 times the mass of the sun.

Chen Yuan's current mass is three times that of the sun. If it is multiplied by fifty times, it is almost close to the limit of self-collapse.

"So that's it." Chen Yuan understood.

"...You don't really want to become a black hole, do you?" Ya asked doubtfully.

Chen Yuan thought for a moment and said, "Since it's possible, why not give it a try?"

"If that's the case, then I'm a little worried."

"Worried?"

"I'm worried that I'll become bored again, without a friend like you to chat with. Life won't be easy, infinite life, long years, very boring."

"Ah?" Chen Yuan was stunned: "Why do you say that? I just said that I became a black hole, not that I would die."

"But how do you know that you are not dead after you become a black hole? Black holes, in our civilization, are dead stars, the corpses of stars. If you become a black hole, will your consciousness still be there? I can't be sure of this, so I'm very worried."

Chen Yuan was stunned.

This is something Chen Yuan has never thought about.

If he becomes a black hole, will he still be alive?

Black holes will devour everything, even light cannot escape the gravity of black holes, so can his consciousness... escape?

Is it that becoming a black hole is equivalent to suicide?

"Knowing that you might die if you become a black hole, do you still plan to become a black hole?" Ya asked with interest.

Really? Becoming a black hole is likely to be equivalent to suicide?

Chen Yuan was silent.

For a long time.

He made up his mind: "I want to become a black hole."

"Huh?"

"I want to know, if my mass and volume continue to grow, infinitely. This is my goal and my purpose. If my mass and volume continue to grow, I will become a black hole, and I will also attract death..."

"Then I will accept death."

"Anyway, I want to see the final result."

Ya was silent.

For a long time.

"Sure enough, you are very special. Knowing that you may die, you still have no hesitation?" Ya's voice added a touch of appreciation: "I support you."

"As for whether you will die if you become a black hole, I can't be sure of this. After all, you are the first celestial body with consciousness, a unique and special existence. Whether you will die after becoming a black hole is still a mystery. Maybe you can continue to live, and maybe you don't have to have too much pressure." Ya smiled.

Chen Yuan stopped talking too.

After flying for an unknown amount of time.

Chen Yuan saw a familiar figure.

The huge Sirius A was staying there, emitting bright light.

It was Sirius A.

Sirius A was very large, with a diameter 1.7 times that of the sun and a mass 2.1 times that of the sun.

In the eyes of Chen Yuan in the past, it was a behemoth.

Even in the past, he was almost swallowed by it, but fortunately he ran fast at that time.

But now Chen Yuan's diameter is twice that of the sun, and his mass is 2.9 times that of the sun. He is also a behemoth at this moment.

A behemoth even larger than Sirius A!

The distance between each other is a little close.

The two blue dwarfs captured each other's gravity, and the atmosphere on their bodies began to fly towards each other.

Then they began to entangle in the middle.

"Swallow!"

Chen Yuan thought.

Sirius A slowly turned into a huge golden sphere.

Chen Yuan's volume has exceeded Sirius A, so naturally, he doesn't need any fancy tricks, just swallow it directly.

Chen Yuan used his spiritual consciousness to control his body and moved closer.

The golden light on Sirius A gradually sank into Chen Yuan's body and became Chen Yuan's volume and mass.

Chen Yuan's volume was increasing at a speed visible to the naked eye.

And Chen Yuan's mass was also increasing.

When Sirius A was completely swallowed, the golden light on Chen Yuan's body slowly dispersed.

For a moment, Chen Yuan's mass became 4 times the mass of the sun.

It was still 146 times the mass of the sun away from collapsing into a black hole.