"This is the beginning, all vital signs are normal at the moment, there is no damage to the body, it's over." After a routine report at intervals of one second, it was initially distracted by the external electromagnetic signal and its own situation, and by this time it had already left its original star system.

Sub-light speed is defined as 90 percent or more of the speed of light, and if the Kuiper Belt is used as the edge of the star system, it takes only five minutes to leave the star system as the starting point and enter the open space between the stars.

Losing the acceleration force of the sub-light orbit, the state in the primary body returns to the normal level, and according to the theory of relativity, the two objects move in the same direction and at the same speed, and they are each other's references, and they also maintain a relatively stationary state with each other.

At this moment, the initial acceleration to sub-light speed can also be understood as the acceleration of each body to sub-light speed, so the particles remain relatively stationary with each other, so the body state returns to normal, neither tearing nor superposition of forces.

But in the end, it was still in a state of sub-light speed relative to the outside world, so appearing in front of its traveling course, even a piece of tofu, was enough to kill it in an instant.

At first glance, the outside is dark, only the only light source in front of it is presented, this light source is rainbow-colored, the center is infrared below the visible light, and then the frequency increases step by step, to the visible light will see a crimson ring, like a shooting target, the outer circle is orange, then yellow, green, cyan, blue, purple...... And then outside of the ultraviolet light, it is out of the category of visible light, which is the ring of ultraviolet light.

The astroscopic phenomenon, the cosmic rainbow formed by the relativistic phenomenon of light travel and the Doppler effect, is a wonderful sight that can only be seen after entering such extreme speeds.

Light is light in any state, it does not change due to different reference frames, even if the speed of light slows down due to different mediums, it is only the slowdown caused by the length of the path of light, not the real decrease in the speed of light.

"Is this what the will tells me to observe?"

"It's really different from the normal world, it's very wonderful, but ...... What can the collection of this data bring to the community? It doesn't feel like it's working. ”

"No, it's useful, the will can't be wrong, it's just that I'm too stupid to understand the purpose of the will's request."

"Huh? A second passed, and the radio message continued. "When I first read the timing information of the atomic clock in my body, I repeated the radio information.

"This is the beginning, all vital signs are normal at the moment, there is no damage to the body, it's over." There is no point in doing this, because the distance is too far, and the electromagnetic waves will decrease with the distance, and the only way to solve such a problem is to increase the output of energy, but unfortunately the energy carried by Chu itself is not much, let alone let the twilight receive his own report information.

The original intention of this plan was to use the first few feedback information to determine the degree of influence of the initial shrinkage effect after reaching sub-light speed, so as to estimate the ratio of the initial time to the outside time, and to collect data for use by other members of the family when traveling at sub-light speeds.

However, when the plan was finalized, they changed their minds, no matter how weak the light is, it will not disappear out of thin air, but it is too weak to be captured by the existing radar technology, which does not mean that the radar technology in the future is not good, if during the period when they first went to the target star, they had a technological explosion in radar technology?

Based on this hope, although it is a bit of a waste of energy, they still require that radio messages be sent every second at intervals.

After reporting the information, it returned to a state of idleness at first, but that doesn't mean it can relax its mind, it has to endure a large-scale bombardment every once in a while.

For the mothership creatures, the space voyage is very quiet, but at first it is the opposite, from the beginning of the departure is shrouded in the 'noise', so that it is somewhat nostalgic for the quiet universe at normal speed.

The very thin and empty space between stars does not mean that nothing exists, on average, there will be one hydrogen atom per cubic meter, and the large scale of five light years between the starting star and the target star will at least initially hit 9x10^15 hydrogen atoms.

Everything is relative, the relativistic effect is very obvious in the large-scale cosmic space, the initial impact on the hydrogen atom on the route at sub-light speed is also equivalent to the hydrogen atom on the route at sub-light speed head-on collision with the stationary Chu, the energy released is equivalent to a grenade, in other words, at the beginning of every interval of time, you have to use your face to receive a grenade bombardment, such a bombardment to withstand at least 9x10^15 times.

The impact of these hydrogen atoms is unavoidable, and they wandering between the stars have already dispersed the curtain at the beginning of the star, which is carried by the electric property, which is generally neutral, and it is impossible to deflect by the electric field, and can only resist hard.

Fortunately, the collectors anticipated this situation early before setting sail, so they used a high-density titanium alloy exoskeleton as the initial shell, and the grenade explosion of the original life structure was completely fine as long as it was not in the center of the nuclear explosion.

If it weren't for this intensity, the gatherers wouldn't have the confidence to sail across the stars at sub-light speed, and time would gradually pass under the repetition of Chu Rutz, and Chu wouldn't even notice that time was passing, no way, the surrounding environment was empty, only the cosmic rainbow in front of them was shining in front of them, as if it were eternal and unchanged, it was easy for people to have the illusion that the world was like this, and they were not moving at all, but they were in a relatively static state with the light source in front of them.

But fortunately, the hydrogen atoms that collide from time to time and the atomic clock in the body will dispel this illusion at the beginning, and always remind it that this is not the case in this world.

Time passes slowly, and the initial state of mind is becoming more and more tense, the hydrogen atoms on the route can only be regarded as a ditch and a bump, if you successfully cross the long distance between the stars and do not encounter any massive entities, then it means that the first time to pass through the next ghost gate, to the second way.

This second ghost gate is to complete the sub-light speed of deceleration and enter the star system. It sounds easy, but it's actually ...... It's too hard.

The initial sub-light speed relied on external acceleration, not itself, and it was easy and safe to increase speed, but it did not have that ability to slow down.

The only thing it can rely on is the sun's sails.