Chapter 662: Galaxy, Goodbye
At this moment, it has been more than 1,300 years since Xiao Yu left the Silver Heart, and after about 200 years of sailing, crossing a distance of about 8,000 light years, Xiao Yu will come to the edge of the galaxy.
In fact, even here it already belongs to the category of the edge of the galaxy. Here, the stellar density decreases even further, reaching an average distance of nearly twenty light-years. According to the average distance from the silver heart, Xiao Yu's footsteps at this moment have already surpassed the time when he was led to the edge of the galaxy by the semi-four-dimensional Taihao.
It was also here that Xiao Yu began his first experiment of transporting stars. Xiao Yu picked a yellow dwarf star that was in middle age and began to make preliminary arrangements next to it.
Carrying an object as massive as a star is no longer just a matter of channel size, so Xiao Yu must make instruments in advance, arrange them at the edge of the star in advance, and make some adjustments to the space it is in before he can carry it. The Earth spacecraft dragged the universe to the star, and the instruments that had been laid out in advance began to change the space around the star as expected. The connecting channel of the large and small universes has been opened, and with the cooperation of various instruments, the transportation has begun.
For this transport, Xiao Yu prepared for a long time and spent a lot of energy. And that's not even counting the time spent on early scientific research. But the real handling process couldn't be simpler. After Xiao Yu launched the transportation instrument, the star suddenly disappeared from the visible universe, and the process did not take more than three minutes, it was as simple as that, the transportation of this star was completed, and it had appeared in Xiao Yu's small universe.
A stable gravitational system has been formed in the small universe, and dozens of stars are running quietly and smoothly under each other's gravitational pull and Xiao Yu's orbit adjustment instrument. If all of a sudden an extra star appears here. Then if it weren't for Xiao Yu's human intervention, this would have disastrous consequences.
The gravitational pull of the new star will instantly break the gravitational equilibrium in the small universe, and the end result is that dozens of stars will resume their chaotic orbits again, and may even collide with each other, and then spread to the rest of the stars, changing the orbits of the remaining stars, causing them to collide again. The end result could be the destruction of all stars.
Of course, it is impossible for Xiao Yu to allow such a situation to happen. Long before this star entered the small universe, Xiao Yu had already made all the preparations. All the possible effects of it are in Xiao Yu's assessment, and he is ready to meet them in advance. The entire process of transporting the stars was completed smoothly under Xiao Yu's control, and there was no chaos.
After this star was removed. Xiao Yu also saw a rather interesting phenomenon. The star also has a planetary system, with a planet about the size of Mars at a distance of ten light minutes. revolves around it. But now. The core of the star's orbit, the star suddenly vanished.
Xiao Yu saw that after the star disappeared, the planet seemed to be unconscious, and it was still moving according to its original orbit, as if the star was still there. If this scene is filmed. If it is played to some low-level civilizations, then Xiao Yu can be sure that this situation will definitely make many physicists crazy.
Because in this system, there is no strong source of gravity. There are no stars, no white dwarfs, neutron stars, no black holes. Except for this planet, everything is a void of nothingness. So, what is the planet orbiting?
This is an interesting question, and at the same time a seemingly paradoxical phenomenon dictated by the laws of physics, but it is actually a very simple phenomenon. Because it is impossible to travel faster than the speed of light in a normal universe, whether it is an asteroid or a spaceship, or a beam of light, or a gravitational wave, it cannot travel faster than the speed of light. If gravity is considered as a substance, it can be concluded that a gravitational wave has just left the star and is emitted towards the planet, and then the star disappears, so the planet will still maintain its original orbit under the action of the gravitational wave emitted by the star before. It wasn't until this last gravitational wave was transmitted to the planet and completed its process that the planet noted, oh, the guy who had been holding me back was gone, and there was no gravity to transfer to me anymore. At this time, it will change its track.
The present time is the time between the disappearance of the star and the perception of the disappearance of the star by the planet.
The distance between the two was ten light minutes, so the planet orbited around a point in the void for ten minutes. Ten minutes after arriving, Xiao Yu saw that the orbit of the planet was immediately changed.
Its previous orbit around the star can be roughly seen as a circle. Now, when there was no longer gravity to bind it, it immediately flew out in a straight line along the tangent of this circle, all the way to the dark depths of the universe.
Xiao Yu knows that it has become a wandering planet, and it will continue to wander in the galaxy for endless years to come, and perhaps it will be captured by the stars again and become a member of that star family. But the different elemental structure from its native members will be a headache for the intelligent beings that may appear in that galaxy, because they will have to think about the question: "Why are the planets in the same galaxy so different in their elemental structure?" ”
Thinking of these things, Xiao Yu's mood was a little better. After transporting this star into his own small universe, Xiao Yu embarked on a journey again, went to the next star, and then continued to collect it into his own small universe. When Xiao Yu's fleet reaches the side of the star, the star disappears from the visible universe. It looks like Xiao Yu is a terrifying star devourer.
In this way, Xiao Yu stockpiled suitable stars while walking, stopping and stopping all the way, and finally reached the edge of the Milky Way after about two hundred years.
Here, the true edge of the Milky Way. Here, the distance to the heart of the silver is about 100,000 light-years. At this moment, the aging and slow-moving red giant star presented in front of Xiao Yu is the star farthest from the galactic center above the nearly circular radius of the Milky Way. This means that after crossing this star, Xiao Yu will no longer be able to touch any stellar quasars until he reaches the Great Magellanic Galaxy.
In fact, the matter here is not too thin. Xiao Yu could observe a lot of interstellar dust gathering here. This is because this is where the Magellanic stream from the Large Magellanic Cloud merges into the Milky Way. In fact, the border line of hundreds of light-years in this vicinity can be regarded as the confluence point of Magellan's star stream. The Magellanic stream is like a huge river, rushing all the time, instilling a huge amount of material from the Big Magellanic Galaxy into the Milky Way.
From here, the silver core is completely invisible, unless it is seen with an extremely high-precision optical telescope. This is because the distance from the silver heart is too far at the moment, and there are too many occlusions in the middle. Even with the strength of the central black hole, the rays it released could not pass through so many obstacles and reach Xiao Yu's face. But Xiao Yu knew that it was still in control of this place. Because even an aging red giant star at the very edge of the galaxy still orbits it.
"This is the very boundary of the Milky Way, and beyond this star, I can be considered to have truly left the Milky Way. It's still a long way from being out of the gravitational influence of the Milky Way – a journey of millions of light-years. Even the Great Magellanic Galaxy, an extragalactic galaxy, is only a satellite galaxy of the Milky Way, which is still affected by the gravitational pull of the Milky Way and orbits the Milky Way. From the first time I left the solar system, to the first time I left the Milky Way, in a hurry, nearly 40,000 years have passed. ”
Before I knew it, 40,000 years had passed since I first entered the universe. This incident made Xiao Yu sigh with emotion. The vicissitudes of life, the world changes, and 40,000 years of time have passed in a hurry.
"I don't know what's going on in the solar system right now. I haven't been back to the solar system for 40,000 years...... After I have free time, no more time, and no worries, maybe I should really go back to the solar system and have a look. In 40,000 years, I have grown to the point where my strength is enough to rank in the top ten in the galaxy, and if you count my companion ghost clan, my strength is enough to rank in the top five, but my heart has not changed. The earth is my hometown, the solar system is my hometown, and the Milky Way galaxy is also my hometown. Separation is for better reunion, all the mysteries will eventually be found by me, and the name of Shenzhou civilization will eventually resound throughout the universe. So, Milky Way, goodbye, I'll be back in the future. ”
"Galaxy, goodbye." After saying goodbye again in the direction of the silver heart, Xiao Yu manipulated his huge fleet and left the galaxy without hesitation and embarked on a vast journey.
What awaits Xiao Yu ahead will be the mysterious unknown of another river system, and it will be a long journey of 100,000 light-years without any supplies. Ahead, there may be hope or destruction. (To be continued......)