The starry sky is still the starry sky, the sun is still the same sun, but is the history of the earth still the same?

After recording the coordinates of this space-time wormhole, the exploration spacecraft began to fly in the direction of the earth, and after having this coordinate point, Wang Donghua and the others were not afraid that they would not be able to return to the original time and space.

After Xiaohua's calculations, this space-time wormhole has a throughput turn every ten Earth days, that is, as long as the Flying Fish "excretes" in the direction of the original space-time wormhole, it is possible to return to the original space-time.

After comparing the previous star maps near the solar system, the exploration spacecraft found that the coordinates of the wormhole were no longer the location where they came in, but a void area 3 light years away from the solar system.

The space near the solar system is really empty, and there is only one star system in the solar system within a few dozen light years.

Flying fish arrived in the solar system from here, and if it flew with a warp fold, it would be 3 light years or an hour.

The so-called warp folding flight is actually an application of space science.

You must know that once the speed of the spacecraft exceeds the speed of light, it may cause confusion in time and space, but the use of warp speed folding flight technology, this kind of thing can be avoided, to put it bluntly, the two spaces are folded and shuttled, the application of this folding space, although theoretically can quickly reach any location in the universe, but after tens of thousands of years of practical demonstration by Osheran plane scientists, this is only a theory.

Among the known civilizations at all levels, civilizations above level 5 basically have the technology of warp folding space flight, and the difference lies in the distance of this folding.

According to Xiao Hua, the farthest distance of non-wormhole travel in the Osheran plane is 500 light years per trip. And the frequency of each warp fold is 2000 milliseconds.

Of course, this is in the Osheran plane, but no matter which plane, the conditions for warp folding are also very harsh, first of all, there must be a real-time star map with two spatial point coordinates, because the place where the warp folding is launched and the place where it arrives must be the void, and there can be no gravitational body, so you must know the starry sky of the destination before traveling.

It is precisely because of the practical limitations of space folding technology and the distance bottleneck that even if the Osheran plane is the most advanced existence in the scientific and technological plane in the known river system, it can only use natural wormholes to teleport non-living forms in space over long distances.

Far away, the warp speed that the Exocet is using now can't be compared with the speed of the Osheran plane, but their destination is also close, the distance of 3 light years is only a few seconds at the speed of Exocet 1.2 light years per time, but it is impossible to fly directly using warp speed when you really arrive in the solar system, because there are many large and small gravitational bodies near the solar system.

The spacecraft soon stopped warp velocity co-frequency traversal, and at this time, Wang Donghua also broke away from the sleeping capsule again.

This time, Wang Donghua accepted the lesson and waited until the sleeping cabin automatically opened the hatch before sitting up.

"Captain, we have reached the coordinates of the solar system in plane B at 0.0005 light years, please ask the captain if he uses flat velocity to enter the solar system." After Xiao You waited for Wang Donghua to sit up, he asked in a mechanical voice.

"Agree to enter, but don't rush to land on Earth, use the instrument to explore the actual situation on Earth first." Wang Donghua was still very excited at this moment, but he was still cautious under Xiaohua's reminder, and he was not in a hurry to see this legendary Three Kingdoms era.

Yes, after Xiao Hua's comparison and analysis of the star map, it was judged that it should belong to around 180 AD, and Wang Donghua, who had studied history, certainly knew when this was.

Around 180 A.D., this time is very clear to many people who love history, and this is a very critical point in time.

In 184 AD, at the end of the Eastern Han Dynasty, the Yellow Turban Rebellion.

The history of this point in time has long been known because of a Romance of the Three Kingdoms.

That's right, this is the history of this time period in the original space-time, but according to Xiaohua, this is a parallel space-time, and it is impossible to know when this space-time and the original space-time forked at the same time.

If this parallel space-time bifurcation point that Wang Donghua traveled through occurred after 184 AD, then the original history would not change, but if it happened before, then it is unknown whether there is still the Yellow Turban Rebellion on the earth now.

According to the theoretical analysis of the scientists of the Osran plane, it is almost impossible to travel to a point in time that has not changed history.

Because in the history of the Osheran plane, a natural wormhole that traveled through time and space was also discovered, but later there was a war because several major forces wanted to snatch this space-time wormhole, and the final result of that war was that the space-time wormhole was destroyed in the battle of these people.

However, before that, scientists had done a lot of experiments, which led to these theoretical data.

Because of this, when the Flying Fish approached the solar system, Xiaohua cautiously reminded Wang Donghua.

Although the Exocet flew at a flat speed, it only took more than two hours to reach the outer space of the Earth.

"Captain, the optical detection satellite is ready for launch, please designate the monitoring location of the captain."

In order to allow Wang Donghua to directly find out what is happening on the earth, Xiaohua let Xiaoyou, the main brain of the Flying Fish, choose to use optical detection satellites.

The size of this exploration satellite is not large, about the size of a ping-pong ball, but it is such a small satellite, and its function is very powerful.

This satellite can fly at fifteen times the speed of sound, and under such a high-speed flight, it can also stop at any time and change the direction of flight accurately.

Moreover, the optical camera instrument on the satellite can clearly observe objects not less than one centimeter within 100 kilometers.

With such a "voyeuristic" artifact, it is estimated that Wang Donghua wants to see the beauty of the legendary Middle East Han Dynasty, and it should not be a big problem.

"Host, your mind is as filthy as ever." Sensing Wang Donghua's voyeuristic thoughts, the intelligent program Xiaohua immediately said with disdain.

"Everyone has a love for beauty, not to mention that I am still a good young man......" Hearing the words of the intelligent program Xiaohua, Wang Donghua did not blush at all, but said eloquently.

"Alright, don't think about it anymore, you haven't set the coordinates yet!"

"Uh......"

Of course, Wang Donghua set the location of the Han Dynasty in the eastern hemisphere, and the satellite reached the earth's synchronous orbit in a few seconds, but when the picture was transmitted back, Wang Donghua, who saw the picture, couldn't help but be taken aback, making him immediately have the urge to turn around and go back.