Except for Tang Zhengqing and a few others, no one on the entire earth knew what was about to happen to the earth. Even if Tang Zhengqing told Jiang Wei in person, she would not believe it.

"Let me ask you something." Tang Zhengqing asked Jiang Wei.

"What's the matter? Tell me, if it's too difficult, I won't do it." Jiang Wei said angrily.

"It's definitely not too difficult, and I guarantee you've heard of it all."

"If you have any questions, ask immediately. I have something else to do."

"Well, have you heard of the Chandrasekhar limit? Have you heard of the Oppenheimer limit?" Tang Zhengqing asked Jiang Wei two questions.

"What is this? I haven't heard of it?"

"Ahem, these are the two limits for calculating the mass of stars. Generally speaking, stars will go through these stages from primitive planets to main sequence stars to their old age and death, especially the final death.

They all have to experience a vigorous explosion."

"Explosion? Are you telling me that the sun explodes?"

"Of course, how else do you think black holes come from? I heard that you are still a doctoral student. Why, you don't even know this?"

"What's wrong with doctoral students? Doctoral students have to know everything? So can you recognize more than 300 lipstick shades?"

"I give up, don't talk about this, let's talk about the sun."

"In the entire universe, or the Milky Way, our sun is a yellow dwarf. The weight of the sun is already more than 70 to 80% of the stars. That's right, don't think that our sun is not big just because it is not big.

Very small. In fact, two-thirds of the stars in the entire universe are smaller and less massive than our sun. Those large stars will explode before they die. What is the relic after the explosion? This is mainly due to

It’s their quality that determines it.”

"Hurry up, what's the use of talking about these things?"

"Generally speaking, if the mass of a star after explosion is more than 1.4 times the mass of the sun, it will form a white dwarf. This limit is the Chandrasekhar limit. If the mass is 2.8 times the mass of the sun,

Then it will become a neutron star. However, since some neutron stars rotate and some do not rotate, the rotating ones are also called pulsars, and the mass of the pulsar is generally two and a half times the mass.

Continuing up, there are quark stars. Of course, this is just a theoretical thing. Going up is the black hole. Currently, a star not far away from us has undergone a supernova explosion. Its mass is ten times that of the sun.

Twice, which means it will completely turn into a black hole."

"What does this have to do with our earth? I remember that those stars are many light years away from our earth."

"If it were just a normal supernova explosion, there would be no problem. However, the supernova explosion of this star happened to be aimed at the Earth. Its super-energy gamma rays and cosmic particles were all heading towards the Earth. If these super-energy

When gamma rays and cosmic particles come to the earth, we humans will basically be doomed, and so will the animals and plants on the earth. Generally speaking, this kind of thing is also called a mass extinction of life on earth. Our earth has already experienced it five times.

There is a mass extinction of life. The last mass extinction was the death of the dinosaurs. Since then, there have been no dinosaurs. Of course, if you want to say that birds are dinosaurs, I have no objection."

Tang Zhengqing's words made Jiang Wei confused. She knew about dinosaurs, but what does this flying bird have to do with dinosaurs? When did flying birds become dinosaurs? "Tang Zhengqing, are you kidding me? How could this flying bird be possible?

Is it a dinosaur? How old is the dinosaur, and how old is this bird? How can they be related?"

"How should I put it? Generally speaking, it is indeed unlikely that this kind of thing has any connection, but this is a biological matter, especially a branch of biological evolution. Of course you don't know. What we have now

In fact, the correct classification of the birds we saw is the class Aves, which includes the subclass Enornis and the subclass Enantiornithes. The ones above them are Ornithora, the ones above them are called Ornithoraps, and the ones above them are called Emaniraptors.

Dragons are called Anchiornithids from above, Pennaraptors from above, Maniraptorians from above, Maniraptomorphs from above, and Coelurosaurs from above.

Orders are called theropods from the top up, sauropods from the top up, and dinosaurs from the top up. You should understand by now, right? After hearing what Tang Zhengqing said, Jiang Wei was even more confused.

, what the hell is this? What are these things?

"Forget it, I guess you don't understand either. Anyway, the bird we saw today is a branch of dinosaur."

"Tang Zhengqing, are you going too far? You haven't told me about the supernova explosion yet."

"Oh, yes, yes, there is a star called Betelgeuse more than 700 light-years away from our earth. It has already exploded and has now arrived on our earth. There are still three days left for these super stars.

High-energy gamma rays and super-energy cosmic particles will come to the earth, so I say that the earth is almost finished."

"real?"

"Of course it's true. Can I still lie to you? Do you think I'm going to bullshit you again?"

"What would you do if the earth was destroyed?"

"It will definitely not be the end of the world. Didn't I say that I am ready to protect the earth? The earth will definitely be fine."

"I think you're just bragging and don't even draft a draft. You're still protecting the earth. I'm sorry, you're such a big-headed idiot!"

"Believe it or not, even if you don't believe it, I have no intention of making you believe it, and I have no intention of asking for any reward from you. It's just because the earth is my home, so I am prepared to protect the earth. If it weren't for the fact that I am on the earth,

There are still worries, I have left the earth long ago."

"Leaving Earth? Where are you going? To an alien planet? Are there really aliens?"

"Aliens? There must be some. What do you think? There are at least 200 billion stars in our Milky Way. How many planets do you think there will be? With so many planets, is it possible that life can't be produced? Even if it's only one in 100 million

There is a chance of 1 in 10,000 planets in the entire galaxy. Even if it is 1 in 10 billion, there are still 100 planets with life. And the entire universe, well, it is actually the universe that we can observe. There are almost

There are a billion galaxies. Even if there is only one civilization in a galaxy, there are still a billion. Do you really think that only our earth in the entire universe has life and civilization?"

"It's definitely impossible, but after all, I've never seen aliens!"

"No, you've seen them before!" Tang Zhengqing was referring to Mao Mao, Li Mo and Jiang Wei.

"Have I seen it? When did I see it? Who was it? Why didn't I know?"

"Why should I tell you? Anyway, I can only tell you that there are aliens and alien civilizations in this world. This universe is huge. Believe it or not, forget it. I'm going back to sleep. These two days

I'm exhausted."

"Hey, hey, Tang Zhengqing, are what you said true or false?" Jiang Wei's curiosity has been aroused by Tang Zhengqing.

"Just treat it as a lie, or just pretend that these things didn't happen." Tang Zhengqing said and walked towards his home, but Jiang Wei was willing to let him go. Since he had been intrigued, he naturally followed.

He understands what's going on here.

While Tang Zhengqing and Jiang Wei were talking, observatories around the world also discovered a lot of traces. After all, the Betelgeuse explosion did not mean that it exploded suddenly. There were traces and precursors, many of them.

Observatories have found some traces.

"How's the observation going?" The staff at the Purple Mountain Observatory in China are busy making calculations.

"Through observation, Betelgeuse is extremely unstable and is likely to explode as a supernova."

"If it has exploded, it's over. No one knows when it exploded. Once we know it exploded, the danger will definitely come to the earth."

"Director, don't be so pessimistic. After all, it's only an angle of twenty degrees, so it may not come to Earth."

"We can't take any chances, let alone twenty degrees, we can't take any chances even if it's the second time."

"Yes, yes, yes!" As an old man, he could only nod in agreement, but there was still a newcomer who muttered, "Lucky or not, we can't change anything. If the danger really happens, how serious can we be if we take it seriously?"

Can it change? Those super-energy gamma rays will still fly towards the earth."

"Xiao Hu, stop talking nonsense and go to work quickly." In fact, everyone knows that what he said is right. It is impossible for humans to take charge of these things. We can only leave it to fate, even if danger is coming to the earth.

I can only watch but there is nothing I can do.

At the same time, in addition to the China Observatory, there were also the Hawaii Observatory in the United States, the Southern Observatory in Europe, as well as observatories in South America, Australia, and South Africa, all of which discovered these signs, but they could not guarantee that Betelgeuse

The fourth is whether it exploded or not. After all, whether it is an optical telescope, a radio telescope or other types of telescopes, they basically encounter this information at the same time. It is impossible for the speed of radio to be faster than the speed of light.

Except for Tang Zhengqing and a few others, no one on the entire earth knew what was about to happen to the earth. Even if Tang Zhengqing told Jiang Wei in person, she would not believe it.

"Let me ask you something." Tang Zhengqing asked Jiang Wei.

"What's the matter? Tell me, if it's too difficult, I won't do it." Jiang Wei said angrily.

"It's definitely not too difficult, and I guarantee you've heard of it all."

"If you have any questions, ask immediately. I have something else to do."

"Well, have you heard of the Chandrasekhar limit? Have you heard of the Oppenheimer limit?" Tang Zhengqing asked Jiang Wei two questions.

"What is this? I haven't heard of it?"

"Ahem, these are the two limits for calculating the mass of stars. Generally speaking, stars will go through these stages from primitive planets to main sequence stars to their old age and death, especially the final death.

They all have to experience a vigorous explosion."

"Explosion? Are you telling me that the sun explodes?"

"Of course, how else do you think black holes come from? I heard that you are still a doctoral student. Why, you don't even know this?"

"What's wrong with doctoral students? Doctoral students have to know everything? So can you recognize more than 300 lipstick shades?"

"I give up, don't talk about this, let's talk about the sun."

"In the entire universe, or the Milky Way, our sun is a yellow dwarf. The weight of the sun is already more than 70 to 80% of the stars. That's right, don't think that our sun is not big just because it is not big.

Very small. In fact, two-thirds of the stars in the entire universe are smaller and less massive than our sun. Those large stars will explode before they die. What is the relic after the explosion? This is mainly due to

It’s their quality that determines it.”

"Hurry up, what's the use of talking about these things?"

"Generally speaking, if the mass of a star after explosion is more than 1.4 times the mass of the sun, it will form a white dwarf. This limit is the Chandrasekhar limit. If the mass is 2.8 times the mass of the sun,

Then it will become a neutron star. However, since some neutron stars rotate and some do not rotate, the rotating ones are also called pulsars, and the mass of the pulsar is generally two and a half times the mass.

Continuing up, there are quark stars. Of course, this is just a theoretical thing. Going up is the black hole. Currently, a star not far away from us has undergone a supernova explosion. Its mass is ten times that of the sun.

Twice, which means it will completely turn into a black hole."

"What does this have to do with our earth? I remember that those stars are many light years away from our earth."

"If it were just a normal supernova explosion, there would be no problem. However, the supernova explosion of this star happened to be aimed at the Earth. Its super-energy gamma rays and cosmic particles were all heading towards the Earth. If these super-energy

When gamma rays and cosmic particles come to the earth, we humans will basically be doomed, and so will the animals and plants on the earth. Generally speaking, this kind of thing is also called a mass extinction of life on earth. Our earth has already experienced it five times.

There is a mass extinction of life. The last mass extinction was the death of the dinosaurs. Since then, there have been no dinosaurs. Of course, if you want to say that birds are dinosaurs, I have no objection."

Tang Zhengqing's words made Jiang Wei confused. She knew about dinosaurs, but what does this flying bird have to do with dinosaurs? When did flying birds become dinosaurs? "Tang Zhengqing, are you kidding me? How could this flying bird be possible?

Is it a dinosaur? How old is the dinosaur, and how old is this bird? How can they be related?"

"Forget it, I guess you don't understand either. Anyway, the bird we saw today is a branch of dinosaur."
Chapter completed!