Fighting The Galaxy

This matter dates back about five hundred years. There is a very common galaxy in the fringe of the Milky Way and the fringe of the empire. It is called the Oort galaxy. Of course, this is commonly known as its official Pete couldn't remember his name.

This galaxy is very simple. There is only one star and a solid planet. The distance is quite appropriate. It is simply the gift of the creator. It has sufficient light, fresh water and atmosphere. Therefore, the residents here have always lived in peace and contentment until this day. , The situation has changed.

On this day, all the inhabitants of the planet were suddenly surprised to find that two suns appeared in their sky!

One of the suns is the same as their usual sun, but in the sky on the other side of the head, another new sun appears. The size of this sun is not large, but it appears to be bulky due to the scattering of the atmosphere It's getting bigger, and, more importantly, its brightness, at this moment, its brightness has exceeded their own galaxy's own sun, and its brightness is already the brightest in the universe!

"Supernova explosion?" Princess Jingxi suddenly interjected. Although she took the course of astronomy one hundred years ago, she remembers the contents clearly. Especially, the supernova explosion is in the universe. The most special, it is the most beautiful and magnificent scene in the life of a star.

The two suns they saw, the brightest of them, were very far away. Generally speaking, they would be a few light-years away. This star suddenly exploded!

The universe is dark. Only the stars shining in the dark universe will make people feel warm. For the civilized world, it is precisely because of the light of the stars and the energy of the stars that they have everything. , But now, this supernova explosion will destroy everything.

How strong is this explosion? It is so bright that its electromagnetic radiation can often illuminate the entire galaxy it is in! In general, only planets close to the star can receive enough light. The farther away, the weaker the light, the colder it is. In the supernova explosion, the outer planets can also feel the warmth, and the inner planets can feel the warmth. It was torture like purgatory.

How strong is this intense energy release? To make an analogy, a supernova erupts in only a few days, a few weeks to a few months. In the long river of the universe, this kind of time is nothing, and in this insignificant time, the energy radiated by a supernova can be It is comparable to the sum of the radiant energy of a medium star in its lifetime.

A nova refers to a newly discovered star in the observation of the universe, or a reborn star, and a supernova means to surpass it. It originally existed, but when it exploded, the brightness had exceeded all, beyond The original existence, so called supernova.

This is the star's flashback in the final stage. During the explosion of the supernova, most or almost all of its material will be scattered outward at a speed as high as one tenth of the speed of light, and a shock wave will be radiated to the surrounding interstellar material. . Here, it is the tomb of the supernova, which eventually forms a shell-like structure of expanded gas and dust.

Of course, astronomy can also explain this situation. To make ordinary stars into supernovas, there are two main ways to degenerate stars that suddenly reignite the fire of nuclear fusion, or the gravitational collapse of the core of massive stars. The former mainly refers to the white dwarf star, which has already reached the end of the star's evolution, and then ends itself in glory and magnificence. The latter is an accident of a normal star.

Of course, all of these can predict that supernova explosions are harmful. However, astronomers can observe the data of stars to predict when a star will explode and then give early warning. However, in the desert zone on the edge of the universe, Establishing an observatory is too expensive, so there is no early warning when this supernova erupts.

What did this cause?

The emergence of the death star.

At first, people did n’t have any hunch about the problem. They just thought it was a common astronomical principle. However, after a few days, when the supernova light disappeared, people also found out that their world had changed and began to keep changing. Someone died!

auzw.com When a supernova erupts, it will be accompanied by the release of a large amount of energy. These high-energy rays have completely damaged their physical mechanism, so a large number of people are dying, which is alarming. The medical institution of the empire, so the empire dispatched a medical ship, intending to rescue them.

However, strange things happened.

When the medical ship approached this galaxy with anxiety, it was found that the entire galaxy was wrapped in a strange substance, which was analyzed from the spectrum of visible light, which was different from all existing substances, and seemed to be all. Of physical substance. It spread out and distributed in this sea of ​​stars. Then, the medical ship seemed to hit a wall!

The whole medical ship is smashed!

"Is it a gravitational trap?" Anna asked this time. In the universe, there are many dark places. Even if the starship passes, it will crush the bones. Fortunately, there are labels on the charts. The gravitational wave detector will also find those strange places in advance, and then avoid them early.

"No, the medical boat was not sucked into the gravitational trap. Instead, it was like hitting a wall." Pete said: "At this time, people found out that there is a special zone in the universe, they passed carefully Study, and call these strange substances slow fog. "

Slow fog? Princess Jing Xi frowned, and she seemed to have heard of such things when she was studying astronomy. However, after all, she didn't complete all the courses, so these were just heard and not specifically studied.

"It is generally believed that this slow fog is related to the explosion of the supernova, which is the material ejected by the supernova explosion. Under the gravity of the star of the dead star, it eventually rotates around the galaxy where the dead star is located. They may It's all diffused, or it may just be a shell on the outside, but in the end, no one can be sure what it is. "

"Because no one can go in?" Qin Tian asked.

The size of the universe is nothing strange, and this thing also made Qin Tian curious.

Pete shook his head: "No, after the medical ship was smashed, a starship followed, salvaged all the crew above, and then began to study the way through. Finally, the starship found that when the speed was reduced to one At the minimum, you can easily pass through this layer of slow fog. "

"So, did they go in?" Qin Tian asked.

Pete continued to shake his head: "No, they didn't have that guts in the end. Of course, this is also because there was an astronomer on their spaceship. At the last minute, he found a serious problem. If they went in, they would always go out. not coming."

"Why?" This time almost everyone asked.

"Because that speed is lower than the third cosmic speed of the galaxy."

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