Of course, in the face of Zhang Heng, these civilizations in the galaxy and even outside the galaxy can only be destroyed, but Zhang Heng has no need to do this at all, he is at most the nanny of mankind, but the development of human beings ultimately depends on himself, Zhang Heng can only be used as a hole card, unless the destruction of mankind is imminent, Zhang Heng will not make an easy move. Pen, fun, pavilion www. biquge。 info

After all, Zhang Heng's opponent is still the dimensional star who stands at the same height as himself.

At this time, a stellar-class exploration ship belonging to humans is sailing on the cantilevered edge of the Milky Way, exploring the unknown blank area of the Milky Way and planning a star map. Even if the galaxy already has three third-level civilizations, no one dares to say that they have explored the entire river system, and there are more than 10,000 stellar-class exploration ships in the galaxy all year round.

This kind of exploration ship has a variety of navigation methods, generally when exploring, the exploration ship uses a warp engine, this engine can allow the spacecraft to compress space, cruising in the sea of stars at a speed beyond the speed of light, which is the most basic conventional navigation of the spacecraft.

In the event of an emergency, the exploration ship can also use space jumps to open a wormhole directly in front of the spacecraft, and instantly reach space tens of thousands of light-years away, but this kind of navigation must be used for emergency missions or when encountering danger.

In addition, there is also a subspace navigation method, because after reaching the second level of civilization, many technological civilizations can invent a space silence position, which is a space interference wave that can prevent the spacecraft from making space jumps, so subspace navigation is a way to escape when encountering a powerful civilization and the other party turns on the silent position.

It's just that subspace is not stable, as the opposite of the universe, subspace has too many unknowns and dangers, whether it is environmental danger or the danger of supernormal life in subspace, it is enough to destroy their group of uninvited guests, so unless it is a last resort, the civilizations in the galaxy will not choose this way of subspace navigation.

At this time, inside this exploration ship, Gu Zhanzheng looked at the exploration instrument with a cold expression, recording the environment within a radius of several light years, in the four hundred years that Zhang Heng disappeared, clone warriors like him had already been eliminated and replaced by more advanced biochemical warriors, and because of this, he did not die in Zhang Xu's purge, and later, with the help of Zhang Xin, he regained his feelings by modifying his genes and became a real person.

Later, Zhang Heng returned, and once asked them if they were willing to continue to return to Zhang Heng's command, but they all chose to give up, at this time they already had their own lives, and Gu Zhan's hobby was to explore the entire galaxy and experience the endless universe and countless unknowns.

At this time, his exploration ship is located on the edge of the Sagittarius cantilever among the four cantilever arms of the Milky Way, where the matter is extremely thin, hundreds of times thinner than the vacuum environment created by humans in the 21st century.

If the Milky Way belongs to the forest, then the endless void outside the Milky Way is the barren desert, where there is almost no matter in the space, and the number of particles per square centimeter does not even exceed ten, this is an indescribable dark area, and even the energy drawn from the void is pitiful, and because of the existence of dark energy, even opening the wormhole cannot go from the galaxy to other river systems.

Dark energy is an invisible force or effect that causes and accelerates the expansion of the universe. Until now, humans still don't know what dark energy is, but they know that dark energy is causing the universe to expand. The more the universe expands, the greater the distance between the river systems becomes. Over time, dark energy isolates river systems from the universe, making life within them eventually inaccessible to other star clusters, galaxies, and groups.

Perhaps in tens of billions of years in the future, galaxies beyond the Milky Way will be so far away that they will become difficult to detect because only a small number of photons can reach the Milky Way, and the wavelengths of those photons will grow to be undetectable.

Once this happens, no information from the outside world reaches the galaxy, the light will disappear from view, and the universe will forever look dark and empty from every angle.

But today, at the edge of the Milky Way, Gu Zhan found a lot of material slowly drifting in from outside the Milky Way in the radar of the environmental exploration instrument.

"What is this?" Gu Zhan narrowed his eyes and looked at the shape of the matter projected by the exploration radar, but found that the matter was like eggs, the whole was yellow-green, and the shell was like organic matter, floating in the void of the universe, and the gravitational pull of the Milky Way captured it.

"Brain, scan." Gu Zhan said.

"Scanned, the density of the substance is 7.4 g/cm? Left and right, the shell is silicide, and life fluctuations are found inside, and we are searching for comparisons in the material library......"

"Warning, no one who meets the conditions is found in the material library, it is suspected that a new type of unknown life is suspected, it is recommended that the captain capture and analyze, you can get a reward from the Stellar City government, please pay attention to safety, unknown life may be dangerous."

Hearing Zhi Brain's warning, Gu Zhan gradually frowned.

"Captain!" Behind him, several crew members showed a look of surprise, and they put down their work and walked over, they also heard the analysis of the brain, and immediately became excited, in order to encourage people to explore, Stellar City will give corresponding rewards according to the discovery of the exploration ship, and the rewards are extremely rich, at this time, these crew members flocked like cats that smelled fish.

"Captain, this is a big discovery, since we discovered space floating in three cosmic years, basically no new space species have been discovered, this is a great credit!" Someone immediately said.

"I know, but this kind of thing has its own dangers, and for the sake of insurance, which of you would like to explore it for yourself?" Gu Zhan asked rhetorically.

"I'll go!" A young man with a long camera immediately raised his hand and sighed, "Have you noticed that this creature seems to have floated from outside the river system, which is amazing, you must know that because of the existence of dark energy, the river systems outside the galaxy are leaving us at a speed beyond light, and this kind of life outside the river system was discovered by us first, maybe it is enough to become a great discovery recorded in the history of galactic civilization!" ”

"Okay, then you go, remember to be careful, and if something happens, return immediately." Gu Zhan nodded, watching the young man leave happily, but suddenly, deep in his heart, a bad premonition flashed.

It seems that some danger is slowly approaching......