In the second orbit of the stellar system, a large number of cosmic creatures have appeared. They are active among the meteorites in the asteroid belt. They are exploring many meteorites in a carpet. They would rather get nothing than never let go.
The starting point of cosmic organisms is evenly distributed in all positions of the inner asteroid belt. Although it consumes a lot of resources, it greatly reduces the time consumption.
Soon, the asteroid belt in the second orbit of the stellar system was surveyed by cosmic creatures.
"It is reported that no debris of the suspected spacecraft has been found."
In the radio-built cross-planet channel, the results of the survey of the inner ring asteroid belt were announced, and the wreckage of the spacecraft was not found as the collectors wished.
"Are you sure there is no meteorite missing?"
"I'm sure there are no omissions."
The reported organisms responded to the inquiry of the same race with great certainty. When the cosmic creatures searched, they did not even let go of the fist-sized meteorite fragments, but even so, they still could not find any clues.
The collectors who received such a reply discussed it again in the channel.
"What do you think of this?"
"Maybe it's degraded naturally?"
"It's impossible. This is space, not the surface of the planet. Even the corpses on the dwarf planet still exist. There is no reason why the wreckage of the spacecraft has been eroded."
"Will it float out of the second track?"
"It's possible, but not big. People are on the planet, and who is sailing? If there are left-behind companions on the spacecraft, why did the companions leave the people on the planet alone? That doesn't make sense."
"It is not necessarily that people need to start the spacecraft. It can be a displacement caused by meteorite collision. There is no resistance in the universe. As long as enough initial kinetic energy is given, the spacecraft can float out of the second orbit."
"Are you trying to say that the wreckage of the spacecraft fell into a star?"
In the face of gravitational potential energy, if the speed of all matter drops, it cannot guarantee the centrifugal force of the revolution, and will eventually fall into the star. The wreckage of the spacecraft may collide with other asteroids in the inner ring meteorite belt, and after the speed drops, it will be dragged out of the second orbit by the star's gravity.
However, there are still opponents of this explanation, because if the spacecraft wants to enter the second orbit, it must maintain its speed in the second orbit. Only in this way can it anchor in the second orbit. According to the description of relativity, in the case of the same speed and in the same direction, the matter remains relatively static, so the probability of collision is It's smaller.
Another reason is that there is not enough evidence to prove this, and brain-to-brain speculation alone cannot convince all collectors.
Just as the two groups of collectors were arguing, several spoilers joined in and gave the ship's collector a heavy punch to dissipate their assumptions.
"It's all quiet. Let's put aside these things that are just guessing and can't be decided. I have another good news for you."
"What good news?"
"The half-life time inside the mummified corpse has been calculated."
"How much?"
"Around 70,000 years, with a positive and negative error of 1,000 years."
Huo Gu often uses the method used to measure the age of fossils in archaeology. Although it has nothing to do with combat, Huo Gu is happy to teach the fields he is really good at to collectors.
Naturally, the collectors dare not neglect what the supreme will teaches. They will learn as much as Huo Gu teaches. They not only learn it, but also completely understand it.
Before the collectors could digest this information, another collector immediately broadcast it. The source of the information was the first discoverer of the new civilization who originally presided over the global exploration of dwarf planets.
"I also found something on my side."
"What traces do those left behind?"
The collectors naturally thought of new discoveries on the mummified corpse. But this individual on the dwarf planet gave a negative answer, and it found something else.
"No, is it a discovery on the planet, or you take a look first, and you will understand after reading it."
The 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 pits, and there are a large number of dense craters on one side, stacked, like ripples falling on the surface of the water, of different sizes and rings.
On the other hand, there are very few craters, but because there are few, they are conspicuous enough for the collectors to notice what has happened to the dwarf planet.
It is a crater left by an earth-shaking impact. The ratio of this crater to a dwarf planet, if passed on to the earth, is equivalent to a huge crater in the entire Antarctic Circle.
If such an impact occurs on the earth, then the meteorite is fully capable of smashing the Japanese islands below sea level, and will also affect South Korea by the way, sinking more than half of the land.
The huge waves caused by this meteorite impact can spread from one end of the earth to the other end without the obstruction of the land.
The answer was about to come out, and all the collectors' forward inferences were overturned. There was a brief silence in the whole channel because of this shocking message.
"This, this is..."
"This dwarf planet does not belong to the second orbit at all. It is not an celestial body that already exists in this orbit!"
The dwarf planet itself has rotation, so the distribution of craters can be scattered and disorderly, but it must be uniform and random, and there should be no such obvious traces.
So the dwarf planet is an alien. This alien broke into the second orbit of the originally stable movement. caused a large number of meteorite impacts and left a large number of craters on one side.
This is like running in a rainy day. If the runner is fast enough, the runner's back will not be soaked, and the front will be completely wet.
"Where does it come from?"
Build a physical model! We need to make sure where it comes from!"
Although there is no clue, the collectors can be sure that something must have changed in this stellar system 70,000 years ago. The mass of the meteorite that can hit such a huge crater is also quite huge.
However, it is also because of such a huge mass that their orbits are very stable, and they will not easily change lanes to hit the planets due to the collision of other meteorites. In this respect, they are very similar to planets. It can be said that such large-mass meteorites are the predecessors of early planets.
It is not difficult to determine which part of the asteroid belt the dwarf planet enters from. The speed multiplied by time is equal to distance. A simple physical formula is now in use.
First of all, we learned about the age of the oldest crater in the side of a large number of craters, so that the time when the dwarf planet entered the second orbit can be roughly determined.
According to 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 known.
If you know the speed and time, you can get the distance of the dwarf planet around the star according to the physical formula. This distance is divided by the orbital distance, and you will get the number of revolutions and the unfinished revolution.
The unfinished revolution of the circle is the entry point for the dwarf planet to enter the second orbit.