Voyage of the Stars

Before gravitational waves were confirmed, almost everything civilization knew about astronomy came in the form of electromagnetic radiation, whether it was starlight, radio or microwave signals from deep space.

And when detection methods were expanded and gravitational wave detection was realized, people saw a new universe.

Humanity has mastered this technology, but it has only been passive and indirect detection from beginning to end, and the equipment is very primitive, well, very primitive for advanced civilizations.

Humanity's laser interference space antenna can detect gravitational waves, and can only passively detect gravitational waves that reach itself. However, the sixth-level civilizations in this universe are different. They can actively detect those that are still in the light cone for them. gravitational waves outside.

The Galactic Alliance is like this, the Silicon-based Federation is like this, and the Awakeners who are looking for something in the galaxy are also like this.

The Awakeners have been in the Milky Way for some time. Their rectangular battleships, in groups or individually, slowly spread from where they arrived in the Milky Way, and at the same time, they used this detection method to detect possible wormholes in space.

This was how they found the star gate that took them across the river system to the Milky Way, so they also searched for it after arriving in the Milky Way.

However, the vastness of the Milky Way is comparable to that of the Triangulum Galaxy, and the Awakeners cannot explore without scruples in the Milky Way like they did in the Triangulum Galaxy, so their exploration progress is very slow.

Several dead wormholes have been detected, but none of them are traces left by the so-called voyagers of the previous generation.

Years passed, and no matter how hidden the activities were, they were eventually discovered. The first one to encounter the Awakeners was the Immortal Community, but that fleet was completely wiped out by the Awakeners, and now it is the Galactic Alliance.

The Galactic Alliance's concealment technology is obviously much better than that of the Immortal Community. After they discovered the Awakener and started their plan, the Awakener still did not realize that they had been targeted.

It was not until the Galactic Alliance began to take action to actually spread the news that extragalactic civilizations were visiting the Milky Way that the Awakeners became aware of it.

But at this time, the reapers also got the news.

"I found such news in the gravitational wave broadcast information of certain space nodes." At about the same time, a message appeared on the internal communication channel of the awakener civilization.

The internal communication of the sixth-level civilization is obviously real-time communication, and the information mentioned in this message is found from the gravitational wave broadcast information. The meaning is also very obvious. It is the information filtered out from many gravitational wave broadcasts.

Everyone knows that the Milky Way is vast, and the propagation speed of gravitational waves is not infinitely fast, but the same as the speed of light. Therefore, even a sixth-level civilization cannot violate the laws of physics and broadcast gravitational waves to the entire Milky Way at once.

In level six civilizations, the concept of so-called gravitational wave broadcasting is different from that of low-level civilizations like humans. Broadcasters do not need to wait for the gravitational wave vibration to spread to the entire galaxy. They only need to increase the intensity of the gravitational wave to ensure that within a specific breadth of the area, As long as other level six civilizations can detect it.

This is how the Galactic Alliance spread the news that the Awakener has arrived in the galaxy. They use their own small universes in the Milky Way as nodes and dispatch spacecraft to spread news in every corner of the Milky Way.

If there is no detection method outside the light cone, it will take countless years for these gravitational waves to enter the laser interference space antenna of a civilization such as humanoids and be captured. Of course, by that time, the information may not be true, because the gravitational wave signal will attenuate as the distance increases, until finally the information is distorted and nothing can be detected anymore.

If a civilization that has never discovered aliens receives this distorted gravitational wave signal, it may start a wave of searches for aliens.

Although this form of broadcasting and receiving broadcast information seems passive, it is true that the receiving party cannot detect it in time if it does not actively detect it. But it is obvious that the Galactic Alliance is not worried that no civilization will receive it.

Their small cosmic strongholds scattered throughout the cantilevers of the Milky Way are one thing, but six levels of basic self-prevention and safety awareness is the key.

The Galactic Alliance is very sure that no level six civilization in the Milky Way dares to wander around the universe without turning on long-distance detection methods. That would be the same as marching without letting go of scouts, and is simply seeking death.

The same goes for the Reapers, but the difference is that the Reapers are looking for their hidden civilizations.

At this time, in the internal channel of the Awakener, the communication information over distance is still there.

"The evaluation of civilizations from extragalactic galaxies, arrival time in the Milky Way, characteristics of warships, approximate areas of activity, and existence of unique technologies seems to indicate that we are right."

"We were discovered. Did the fleet we encountered not deal with it properly?"

"No, I believe in 'Yu''s ability. Besides, he won't joke about this kind of thing. It's not that fleet, it should be other civilizations in the galaxy."

"It appears the Milky Way's water is much deeper than we thought."

“After all, it’s a big place, so it’s normal to have hidden dragons and crouching tigers.”

"Isn't that good? If they are all as weak as the fleet of the Community of Heroes, then our trip to the galaxy will be too boring. Now a challenging civilization has finally appeared. Who knows what kind of silver it is? The Heart Alliance is still a reaper, or some kind of silicon-based coalition.”

"It's the same for all of them. The Perseus Community was able to appear together in the broadcast that year, which means that they are all civilizations of the same level. Even if they are slightly stronger, they are probably not much stronger. In my opinion, you are just too cautious. If You can kill their fleet alone, we can do it too. Even if it is another stronger civilization, our fleet of warships will always be no problem."

"No, it's different. The fleet that You encountered at the beginning did not find any traces of their special technology, otherwise their combat effectiveness would not be so weak. We still have to be careful. After all, the main purpose of our coming to the Milky Way is to find traces of the previous generation of voyagers."

"That's what I said, but judging from the current situation, we have obviously been exposed. It is no longer possible to explore quietly like before. Contact is inevitable, and those civilizations in the Milky Way will definitely intervene."

"Then what do you think we should do?"

"What to do? Just do it. Since we have been discovered, we must take the initiative to attack and give a heavy blow to the civilization that is targeting us, so that they know that we are not easy to bully. Otherwise, we will only face endless harassment in the future, which is even more detrimental to our exploration. It is better to put it in the open."