In the second orbit of the star system, a large number of cosmic creatures appeared, which were active among the meteorites in the asteroid belt, and many meteorites were carpet-searched, and they would rather find nothing than let go.

The starting point of cosmic life is evenly distributed in various locations of the asteroid belt in the inner circle, and although the resources consumed are somewhat large, this greatly shortens the time consumption.

Soon, the asteroid belt in the second orbit of the star system was surveyed by cosmic beings.

"No suspected shipwreckage has been found."

The results of surveying the inner asteroid belt in the interplanetary channel constructed by radio were announced, and the wreckage of the spacecraft was not found as the gatherers had hoped.

"Are you sure there isn't a meteorite missing?"

"I'm sure nothing is missing."

The reported creature replied to the inquiry of the same clan with great certainty, and when the cosmic creatures were searching, they did not even let go of the fist-sized meteorite fragments, but even so, they still failed to find any clues.

The collectors who received such a reply again discussed it in the channel.

"What do you think about this?"

"Maybe it's naturally degraded?"

"No way, this is space, not the surface of the planet, even those corpses on the dwarf planets still exist, there is no reason for the ship's wreckage to be eroded."

"Will that float out of the second track?"

"There is such a possibility, but it is not big, people are on the planet, and who is driving the ship? If there are companions left behind on the spaceship, why did the companions leave the people on the planet alone? It doesn't make sense. ”

"It doesn't have to be a person to start the spacecraft, it can be the displacement caused by a meteorite collision, there is no drag in the universe, as long as a sufficient initial kinetic energy is given, the spacecraft can float out of the second orbit."

"You mean to say that the wreckage of the spaceship crashed into the star?"

In the face of gravitational potential energy, if the velocity of all matter decreases, there is no guarantee of centrifugal force, and it will eventually fall into the star, and the spacecraft wreckage may collide with other asteroids in the inner meteorite belt, and after the speed drops, it will be dragged out of the second orbit by the gravitational force of the star.

However, there are still opponents of this explanation, because if the spacecraft wants to enter the second orbit, it must maintain the speed of the second orbit, and only in this way can it anchor in the second orbit, according to the description of the theory of relativity, under the same speed and direction, the matter remains relatively stationary, so the probability of collision is relatively small.

Another reason is that there is not enough evidence to prove this, and it is not convincing to all collectors by guessing alone.

While the two groups of gatherers were arguing, several spoilers joined in, giving the ship's Gathering Collectors a punch and dissolving their assumptions.

"Be quiet, put aside all these things that are still just speculations and can't be decided, I have another good news for you here."

"What's the good news?"

"The half-life time inside the dried corpse has been calculated."

"How much?"

"About 70,000 years, plus or minus error of 1,000 years."

Hogu often uses the method used in archaeology to determine the age of fossils, and although it has nothing to do with combat, Hogu is happy to teach the collectors what he is really good at.

The things taught by the supreme will, the gatherers naturally did not dare to slack off, as much as Huo Gu taught, they learned as much as they wanted, not only learned, but also thoroughly understood.

Before the gatherers could digest this information, another gatherer immediately broadcast, and the source of the information was the first discoverer of the new civilization who had previously presided over the global exploration of dwarf planets.

"I've made some discoveries here, too."

"What traces of those dried corpses remained?"

The gatherers naturally thought of a new discovery on the dried corpse, but the dwarf planet individual replied in the negative, saying that it had found something else.

"No, it's a discovery on the planet, or you guys take a look at it for yourself, and you'll understand it after you see it."

A physical model of a planet appears in the channel, this is the dwarf planet with traces of a new civilization, the surface of the planet is cratered, and there are a large number of dense craters on one side, layered on top of each other, like ripples caused by raindrops falling on the surface of the water, different sizes, one ring after another.

On the other hand, craters are rare, but they are conspicuous enough for collectors to notice what has happened to the dwarf planet.

It was the crater left behind by an earth-shattering impact, and the crater was equivalent to the entire Antarctic Circle if transferred to Earth.

If such an impact had occurred on Earth, the meteorite would have been able to smash the Japanese archipelago below sea level, and by the way, it would have spread to South Korea, sinking more than half of its land.

The huge waves set off by this meteorite impact can spread from one end of the earth to the other side of the earth if there is no land obstruction.

The answer was already forthcoming, and all the inferences of the gatherers were overturned, and there was a brief silence throughout the channel because of this shocking information.

"This, this is"

"This dwarf planet doesn't belong to the second orbit at all, it's not a celestial body that exists in this orbit in the first place!"

Dwarf planets themselves have rotation, so the distribution of craters can be scattered, but it must be uniform and random, and there should not be such obvious and distinct traces.

So the dwarf planet is an outsider, and this outsider breaks into the second orbit of the originally stable motion, causing a large number of meteorite impacts and leaving a large number of craters on one side.

It's like running in the rain, if the runner is fast enough, the runner's back won't get soaked, and the front will be completely soaked.

"Where did it come from?"

"Build a physical model! We need to determine where it came from! ”

Although there is no eyebrow yet, the collectors can be sure that this star system must have undergone some great changes 70,000 years ago, and the meteorite that can hit such a huge crater is quite massive.

But it is precisely because of such a huge mass that their orbits are very stable, and they will not easily change lanes and hit the planet due to the collision of other meteorites, which is very similar to the planet, and it can be said that this kind of massive meteorites are the predecessors of the early planets.

It's not difficult to determine which part of the asteroid belt a dwarf planet is entering, and speed multiplied by time equals distance, a simple physics formula, now comes in handy.

The first is to know the age of the oldest crater on the side of the large number of craters, so that we can roughly determine the time when the dwarf planet entered the second orbit.

Based on the energy release of the largest crater combined with the mass of the dwarf planet itself, the speed of the dwarf planet itself at that time can be obtained.

Now that the speed and time are known, you can get the distance taken by the dwarf planet to revolve around the star according to the physical formula, and divide this distance by the revolution distance to get the number of revolutions and the number of revolutions that are not completed.

The unfinished revolution is the entry point for the dwarf planet to enter the second orbit.