Bright Sword starts with the grenade flat.

Chapter 477 The Power of Black Hole Explosion

That’s right. The reason why Liu Xiu was so active was naturally that he wanted to obtain the experimental spacecraft built by the Space Alliance Academy of Sciences in its entirety.

After all, the micro black hole created by the gravity furnace inside this experimental spacecraft alone is worthy of careful study by the Science Academy of Wandering Blue Star.

You have to know that the power of a black hole explosion is extremely amazing. Of course, Liu Xiu has never seen what a black hole explosion looks like, but he has seen helium flashes and even supernova explosions.

You should know that a supernova explosion is an extremely intense celestial activity occurring in the universe, which releases huge amounts of energy in an instant. So how exactly is a supernova explosion formed?
A supernova explosion occurs after the main sequence stage of a star ends, but not all stars will experience a supernova explosion. For example, the most familiar sun will not experience a supernova explosion.

At most, it will only form a helium flash. Of course, even if it is just a helium flash, the blue planet living in the solar system cannot bear it, so the humans on the blue planet can only wander with the blue planet.

You should know that the sun is just a yellow dwarf star, a medium-mass star. The reason why it can emit light and heat stably is that the outward radiation expansion pressure generated by hydrogen nuclear fusion is balanced by the gravitational force of the center. However, as the hydrogen element on the sun is depleted, the outward radiation expansion pressure weakens, and the internal pressure of the sun further increases under the action of the central gravity, so helium nuclear fusion is ignited. However, in this process, a helium flash will occur, which is caused by thermal runaway of the sun.

At this point, the Sun has entered the helium fusion stage from the hydrogen fusion stage. After that, nuclear fusion will continue to advance to heavier elements until carbon or oxygen terminates, after which the Sun will collapse into a white dwarf.

Of course, collapsing into a white dwarf is the end of the sun, but it is not the end of all stars. If the mass of a star reaches more than eight times the mass of the sun, it can advance nuclear fusion to iron after the main sequence stage ends.

Iron is the final point of stellar nuclear fusion, because before iron, fusion will release energy, but the fusion of iron not only does not release energy, but absorbs energy. When the nuclear fusion on the star advances to iron, the outward radiation expansion pressure will decrease sharply, so the entire star will collapse rapidly toward the center under the huge gravitational force, and the huge mass will hit the core, making the stellar activity become extremely intense.

In an instant, a huge amount of energy is released, which is equivalent to ten times the total energy released by the star in its lifetime. This phenomenon is called a supernova explosion. Only stars with a mass of more than eight times that of the sun can have a supernova explosion.

The energy released by stellar nuclear fusion is enormous. Taking the sun as an example, the energy released every second can meet the energy needs of all mankind for 250,000 years. However, the amount of solar energy that can be collected on the blue planet is almost zero.

The sun can release such a huge amount of energy in one second, and the energy released by a supernova explosion in an instant is equivalent to ten times the energy released by a star in its lifetime. Its power can be imagined.

Moreover, the affected area of ​​a supernova explosion can reach about fifty light years, which means that all life on all planets within a radius of fifty light years with the star where the supernova explosion occurs as the center will be destroyed.

The Blue Star has existed for 4.6 billion years. So during this long period of time, has the Blue Star ever been affected by a supernova explosion?

It is very likely that it has happened. You know, in the late Devonian period 377 million years ago, there was a series of biological extinction events, and this series of events is also regarded as the dividing line between the Devonian and Carboniferous periods.

During the late Devonian extinction event, about 70 percent of invertebrates disappeared. So what caused such a huge biological loss?
Previously, scientists believed that the Devonian mass extinction was caused by lava activity on the planet. At that time, a large amount of lava flowed out from the ground, and violent volcanic eruptions completely changed the ecological environment of the earth, resulting in the death of a large number of organisms. However, as the exploration continues, scientists have some new insights. Professor Fields of the Department of Astronomy at the University of Illinois and his research team found some clues in plant spore fossils.

They found signs of ultraviolet damage in fossil spores from the late Devonian period. This sudden increase in ultraviolet light is likely caused by a supernova explosion of a distant star. When a large number of high-energy particles come near the blue star, they will penetrate the blue star's atmosphere, seep into the ocean and soil, and cause the extinction of a large number of Earth creatures. Fortunately, the star where the supernova explosion occurred is far away from the blue star, probably 65 light years away.

If a supernova explosion occurred within fifty light years of the Blue Star, then life on the Blue Star would inevitably be completely extinct. Fortunately, the distance between this star and the Earth is more than sixty-five light years, so life on the Blue Star did not suffer a devastating blow.

Of course, a supernova explosion is powerful enough, but a black hole with a mass far exceeding that of a supernova would have an even greater explosion power.

You should know that in the astronomical observations of humans on Blue Planet, although no cosmic wonders such as black hole explosions have been directly observed, many traces left by black hole explosions have been discovered.

After all, black holes are the most mysterious and bizarre celestial bodies in the universe. Nothing can escape its clutches, even light will be swallowed by it.

Of course, just like stars, stars of different masses are divided into different types of stars according to their mass, and the same is true for black holes. However, only stars with a mass more than three times that of the sun will become black holes after the death of the star.

If black holes are classified according to mass, there are theoretically four types: "supermassive black holes, intermediate-mass black holes, stellar black holes, and quantum black holes." Supermassive black holes exist in the centers of almost all galaxies in the universe.

The existence of supermassive black holes has been confirmed in the physics community, and they act like the engines of galaxies, providing power for the entire galaxy. They are often located at the center of each galaxy, with a mass ranging from millions to tens of billions of times that of the sun. For example, the center of the Milky Way galaxy is occupied by a supermassive black hole.

As astronomical observation equipment became more advanced and better, the scope and distance of observation became wider and wider, and scientists discovered a space-time explosion second only to the Big Bang.

This was caused by a supermassive black hole 390 million light-years away from the Blue Star. It was like a super volcano eruption in the universe, and the "crater" at the center of the explosion could accommodate fifteen galaxies.

The explosion originated from a supermassive black hole in the center of the Ophiuchus galaxy cluster, the largest known structure in the universe. The super-strong gravity links thousands of galaxies together, about 390 million light-years away from our planet.

Of course, from a simple theoretical point of view, any explosion is the transformation of matter into another form of energy, so it can be concluded that any explosion cannot compare to the annihilation reaction of matter and antimatter. Therefore, on the surface, the black hole explosion seems to be inferior to the annihilation reaction.

(End of this chapter)