Global Famine: My items can be automatically upgraded.

Chapter 541: Unpredictable Destruction

In Shen Bei's eyes, the last guarantee for mankind is not Titan, but spacecraft capable of interstellar travel.

Regarding the current dim and unclear situation.

In addition to the "possibility" of a battle between the World-Destroying Starship, the Shadow Immortal, and the Tiangong,

There is also a latent but almost obvious deadly threat.

That's a cosmic ray burst.

This is the information Shen Bei learned when he read Bermula's memory.

In his conversation with Lingxi Zhiling, he got a positive answer.

There is a fifty percent probability that the Earth will enter another mass extinction period.

That is a supernova explosion.

According to Lingxi Zhiling, a relatively large star will explode when it finally dies.

One of these characteristics is that the flash of light produced by any massive stellar explosion will be brighter than the galaxy in which it exists.

That is to say, when a star explodes, it can be seen in every corner of the galaxy.

However, so far, stellar explosions in the universe are relatively far away from the earth and are difficult to see with the naked eye.

The interesting point here is that even if you see it, its explosion process is very slow within the field of vision.

This ongoing process will likely take several months.

Essentially, this is because the faster the speed, the slower the time.

What we can see with the naked eye is that it is moving in high-speed slow motion.

And in the center of the explosion, it only took a moment.

When a star explodes, it ejects matter and creates a nebula.

Logically, these nebula fragments should not emit light, but when they explode, flashes of light will appear. These flashes and fragments will float together in the universe and can continue to shine for tens of thousands of years.

Interestingly, the sun, as a star, will not explode because... it is too small.

Here, Shen Bei also learned a concept: the smaller the star, the longer its lifespan.

However, the sun is already halfway through its lifespan. In five billion years, it will continue to expand, and its color will change from its current golden yellow to dark red.

After expansion, its maximum length can swallow the earth.

Then the sun will begin to shrink, becoming a white dwarf the size of the Earth, continuing to shine for billions of years before slowly dying.

However, this is not a crisis that may lead to the destruction of the earth. Shen Bei will not care even if it happens a thousand years later, let alone five billion years later.

According to the information he read from Bermuda, the Earth would be in danger of destruction in just a dozen years or less.

Now, for Lingxi Zhiling, this peculiar distribution of planets in the solar system is very rare in its cognition.

Generally, galaxies are composed of at least two or more stars.

That is to say, there are two stars rotating opposite to each other in a galaxy.

It is extremely rare for the solar system to have only one star and remain stable.

In other galaxies, if one of them dies, it becomes a white dwarf.

This very small but very massive white dwarf will continue to absorb matter from another star, causing the mass of the white dwarf to continue to grow.

When this mass reaches 1.4 times the mass of the sun, the white dwarf will explode violently.

What’s even more interesting is that what came out of the explosion was all iron.

In other words, the large amount of iron suspended in the universe was produced by such explosions.

Lingxi Zhiling also mentioned that if there is intelligent life in this binary star system, it will definitely be more highly developed than life on Earth.

Because the situations these intelligent lives face are more complicated than those faced by Earth.

Simply put, the so-called alien life has to face two suns.

For example, humans find it difficult or poor at solving game problems.

For example, if eleven people play football against each other, it is difficult to analyze who will win because there are 22 uncertain factors.

But for the intelligent life produced by this binary star system, it is very simple for them to analyze it.

Lingxi Zhiling also made a joke that if the football of the old era was brought to other intelligent galaxies, they would definitely develop into three or four teams playing together.

In addition, here are some tips for measuring space distance, how humans can determine how far a galaxy is from the earth.

The usual practice is to find a white dwarf in the galaxy and calculate it by looking at its brightness.

Lingxi Zhiling also suggested giving it a try, but Shen Bei refused, saying it was easy and a waste of cell lines.

Back to supernova explosions, a supernova explosion will only occur if the mass is more than six times that of the sun.

A lot of knowledge has been laid in the previous part.

Lingxi Zhiling then gets to the point.

Somewhere far away from Earth, a star is exploding.

This star can even be seen by looking up at the sky.

It is Betelgeuse in the constellation Orion.

This star is so huge that its radius is as far as the distance from the sun to Jupiter.

Its mass is more than twenty times that of the Sun.

According to the knowledge described above, the smaller the mass of a star, the longer its lifespan, and the larger its mass, the shorter its lifespan.

The lifespan of Betelgeuse is as short as only 10 million years.

According to Lingxi Zhiling's calculations, at this moment, this year, Betelgeuse's lifespan has reached its end after 10 million years.

So, it is going through the critical moment of the Big Bang.

Measurements and analysis show that Betelgeuse's brightness is increasing, has reached a critical point, and is suddenly beginning to dim.

Photos taken by Lingxi Zhiling show that the current brightness is less than half of what it was about two months ago.

And Betelgeuse is in the process of exploding.

It expands and then contracts.

When it shrinks to the extreme, it begins to explode.

During the contraction process, the atoms in the center are flattened, the electrons are squeezed into the nucleus, and then the protons will become neutrons. Therefore, there is nothing in the center except neutrons. It will eventually form a small planet with a diameter of only about 20 kilometers, and then begin to explode, ejecting everything on the periphery.

Then there will be a pure neutron object left in the middle, which is a neutron star.

Neutron stars are different from other planets. Other planets at least have sand and stones, but neutron stars are covered with neutrons.

Every cubic centimeter of a neutron star weighs billions of tons.

At the same time, the two poles of the neutron star will emit high-intensity electromagnetic waves.

Some of these electromagnetic waves are visible light, and neutron stars also rotate at high speed.

Therefore, during this rotation process, if the electromagnetic waves emitted by the two stages of the neutron star hit the earth.

This neutron star can be seen flashing in the sky, so this neutron star has another name "pulsar".

But pulsars' rotation is very stable and can last for tens of billions of years.

Here, pulsars have another function, which is to calculate time.

However, when traveling in space, the flight speed is uncertain and the flow of time will also deviate.

Then the task of unifying time falls to pulsars.

Back to the topic, the scary fact is that Betelgeuse is only 600 light-years away from Earth.

When it explodes, it releases a large amount of nuclear radiation, that is, gamma rays.

If this gamma ray is facing the earth at the beginning of its explosion, the earth's ozone layer will be cleared instantly.

At the same time, the last scene visible on Earth is white.

Nothing can be seen except white.

Everything will die in an instant.

In other words, when Betelgeuse exploded, its two poles did not hit the Earth, and the Earth escaped the disaster.

According to Lingxi Zhiling's deduction, the dinosaurs of that time might have witnessed other neutron stars exploding and irradiating the earth with two poles.

Currently, Betelgeuse is experiencing an explosion, but it is currently impossible to infer or calculate whether the two poles are aimed at the Earth.

The only contingency plan is... to temporarily leave the earth and wait for the results.

What Shen Bei is currently doing coincides with what You Wuchang is doing.

The difference is that Shen Bei controls it himself, while You Wuchang relies on Ling...