In the vast universe, except for stars, planets, comets and other celestial bodies, there are not absolute vacuums. Large pieces of interstellar dust will float in many places.

Their components and the components that make up planets are not essentially different. They are all particles of rocks and metals. Under the constraints of appropriate gravity and spiritual magnetic fields, they condense into cloud-like celestial bodies, so they are also called "nebula".

The Pangu civilization ruins "Kunlun" is hidden in a crab-like nebula, and now another "black spot nebula" is coming.

Perhaps Pangu civilization has mastered some secret method that can manipulate nebula, but it is unknown.

Li Yao knew that according to the different composition of metal particles in the nebula and the changes in the spiritual magnetic field that condenses them, the nebula can present various incredible characteristics, such as sending and shielding special radiation, absorbing and releasing psychic energy, etc.

“That’s all we know about right now.”

Professor Mo Xuan said, "Although we discovered the other party's position, we were shrouded in a large 'black spot nebula'. With our current technical level, we cannot directly observe each other in the three realms of Tianyuan, Feixing and Blood Demon, and peek at the reality of the situation!"

"However, from the perspective of the universe, the distance between the other party and us is not very far. Such a mysterious unknown world suddenly emerged from the side and even took the initiative to say hello to us. It's really hard to say whether it is a blessing or a disaster."

"Whether you lie beside the bed, you can't let others snore, especially someone who we don't know anything about!"

"The worst thing is, come here, come and see. This is the simulated trajectory diagram formed by combining the Pangu civilization star map and the 'Tianxingzhai Observation Map'. Have you found the problem?"

Professor Mo Xuan pointed to the top of the picture and said, "Yes, this mysterious world is not very far from the route of the Real Human Empire Expeditionary Force. A hundred years later, when the Imperial Expeditionary Force passed by them, it is certain that it is possible to discover this world, just like the immortal cultivators such as Su Changfa who discovered Kunlun five years ago."

Li Yao let out a long sigh. As long as he thinks about letting Su Changfa and other immortal cultivators monopolize Kunlun, he can imagine the seriousness of this matter.

"Kunlun" is just a "arsenal" built by the Pangu civilization using the spiritual energy emitted by pulsars. Since this mysterious world has been regarded as a destination for escape by countless Pangu tribes, it is obviously their important stronghold, regional military center, etc.

If such a world is closely related to the Imperial Expeditionary Force, it will definitely not be a good thing for the Federation that is ready for battle.

After all, after hundreds of thousands of changes, does this extremely mysterious world still exist?

And what race and civilization are they living in this world now?

This area is far away from the prosperous area in the center of the Star Sea, so it is unlikely that it is the Empire and the Holy Alliance. Who is it? Is it the demon clan or the demon cultivator, or even the successor of the Pangu clan or the Nuwa clan? Or is it even more strange existences?

Also, why did they "say hello" to the two realms of Tianyuan and Feixing? Is it good intention or malicious, really want to communicate, or have evil intentions, and set up a trap?

"I see!"

Li Yao narrowed his eyes and said, "Since we have discovered the other party, we must not sit idly by. We can only use the stupidest method to send an expedition team as soon as possible to jump to this mysterious world, spy on the local realities and reality, figure out the other party's position, level of civilization, whether it is a threat to us, whether it will be used or even conquered by the Imperial Expeditionary Force, etc."

"Have you ever heard of the 'clock slow down ruler' effect?"

Si Kouli smiled bitterly, "Simply put, when an object gradually approaches the speed of light, the time around it will slow down rapidly and the space will shrink rapidly. The closer it is to the speed of light, the thinner the meaning of time and space. Once it reaches the speed of light, time will stop, and space will collapse into a point, entering the state of 'zero time and space'!"

"Attaining or even exceeding the speed of light is our technical level and is completely unimaginable, so the 'zero space-time' state is just our guess."

"But when the time is close to the speed of light, the time is relatively slowed down, which is a fact that can be observed and proven."

"Our interstellar navigation in the past relied on the jumping of the star sea, and circled the barrier of 'speed of light'. During regular navigation, our starships rarely maintain the sub-light speed state, and only rush up for a few seconds at most!"

"So, even if the phenomenon of 'clock slow down and shrinking' really exists, the impact on us is minimal and can be ignored."

“This mission is different.”

"First of all, the Mars, which is carrying out this mission, is the fastest starship in the Three Realms, which often breaks through the sub-light speed and maintains it for a long time; secondly, it is destined to fly at the sub-light speed for a long time before it can find a mysterious world hidden deep in the dark nebula!"

"These two factors combined mean that for the explorer who is driving Mars, his perception of the passage of time is different from those who stay in the three realms of Tianyuan, Feixing, and Blood Demon!"

"Maybe in his opinion, it was just a year and a half to explore, but decades passed in the Three Realms."

"You understand, Li Yao?"

Professor Mo Xuan sighed, "If we really want to explore this mysterious world, we can only send an explorer. Even for him, it will be smooth sailing and cleanly completed the exploration, surveying and positioning. When we return to the Tianyuan Realm, it is very likely that decades or even hundreds of years have passed!"

"This is the most special and most tangled exploration task in the 'Tianlu Plan'."

"In other worlds, the waterways are relatively clear and the location is relatively clear, and there is no big interference. If you can find the best, you will jump to the new star field to find the next one immediately. There is no gain. You can return to the Federation in three to five years, at most ten years, to reunite with your family, and promote other projects."

"Only for this task, the uncertainty is too great, and it's too long!"

Li Yao and Ding Lingdang were silent at the same time.

The clock slow ruler shrinking effect?

The closer you get to the speed of light, the slower the passage of time?

It would take at least several decades to carry out such an exploration task?

This was something the two of them had never expected before they came together.

"No matter how difficult this task is, how long it takes, or how much the price it pays, we must execute it, right?"
Chapter completed!