With the arrival of the radio signal from the Spark spacecraft, the electronic detonator detonated the explosive instantly. The energy contained in the TNT explosive was quickly released. While generating a large amount of gas, this silent explosion also caused the explosion that was originally crowded in itself.
The asteroid material around us is violently pushed away.
There were many rock fragments that gained enough speed in this explosion, and they fled the planet and never came back. There were also many materials that were gases at normal temperatures but were solid here and exploded again.
It turns into a gas, then is cooled and turned into a solid again.
But in this moment, this small asteroid also briefly had its own atmosphere.
This explosion also opened a channel to communicate between the inside and outside of the asteroid.
The large amount of solid gas inside it is melting rapidly under the action of the decay heat of radioactive heavy elements. This brings high pressure to the interior. And because it is close to the big planet-compared to it, Sedna is not at all
It is undoubtedly a huge thing - the tidal force effect, that is, the effect caused by the uneven gravitational force on various parts of the asteroid's body due to the different distances from Sedna. It has more internal energy inside.
For example, the side of the asteroid's body that is far away from the star Sedna will experience a smaller gravitational force, while the side closer to the star Sedna will experience a greater gravitational force. In this way, under the action of gravity, it will be torn and squeezed.
Pressure, distortion, and this will be expressed in the form of heat energy.
As a result, the solid gas inside it melts into gas faster, and the internal pressure is higher.
At this moment, the passage to the outside was opened. Then, under the action of the internal pressure, the gas surged out, just like a balloon with a hole.
There are also strict requirements for the size of this passage opening. It cannot be too large or too small, it must meet the requirements. Because if the opening is too large, the injection speed of the gas will decrease, and the reverse thrust will decrease. On the contrary, the injection speed
will increase, but the reduction of the total amount will also lead to the reduction of reverse thrust. A balance must be achieved between the two to achieve the maximum effect.
This explosion, which was carried out after rigorous calculations, obviously achieved good results. The observed gas injection speed and flow rate fully met the requirements.
As a result, a "fireworks show" that was much larger than before was staged in the vast space on this tiny, dust-like asteroid.
At this moment, people have not noticed any obvious changes in the orbit of this asteroid, but this does not matter. The ejection of gas and the reaction force exerted on the asteroid body during the ejection process are a relatively long-term process. In the gas
Under the jet, the reverse thrust always exists and continues to act on it.
After finding that everything was as expected, people's mood was lifted again. But it was still not the final moment. People still had to wait.
The gas jet is always continuing, and it is constantly approaching Sedna. And because of the existence of this reaction force, Xiao Xi's prediction of its orbit is constantly being revised.
On the projection screen, the future predicted orbit of the asteroid marked green is also green. At this moment, this green line still coincides with the star Sedna, which is also marked green. This means that if this
If the asteroid continues to advance along its current trajectory, collision will still occur.
But the angle at which the green line coincides with the star Sedna has been changing as time goes by. People stared at the screen intently, carefully observing every change in the simulated image.
Gradually, the coincidence point between the green line and the Sedna star decreased from about 20% to 19%. After that, it became 18%, 17%...
Until it became 1%.
This means that the asteroid will hit Sedna in an almost parallel orbit and at an extremely sharp angle.
But this is still not the end. People can see that the angle of impact is still changing. The impact point is constantly retreating, and later, this line turned out to be significantly curved.
This means that it will orbit Sedna half a circle before hitting it.
Then, half a circle turned into a circle, and one circle turned into two circles.
"come on! Come on……"
People shouted silently in their hearts.
Time passed quietly, and there was only one hour left before the final impact time. At this time, in the simulation image, the coincidence point between the orbit lines and the Sedna star suddenly disappeared. Then, its orbit
The lines completely overlap and form an ellipse.
This means that it obtained a stable orbit around Sedna. It became a satellite of Sedna. If there were no accidents, it would never hit Sedna.
Zhao Changxing felt a rush of blood rushing to his head, and a surge of ecstasy instantly occupied his heart. Almost subconsciously, he roared: "Okay!"
"Very good!"
"Success!"
People cheered together. I don’t know how many people were so excited that tears filled their eyes. Even the children who didn’t understand anything jumped up and cheered happily at this moment.
"We made it! We made it!"
At this moment, the orbit of the asteroid is still changing. Because the gas inside it is still ejecting, exerting force on it. So its orbit is once again out of stability and begins to become chaotic. But this does not matter,
Because no matter how it changes at this moment, its orbit will always change in the direction away from Sedna Star. At most, it can obtain an orbit that escapes the gravity of Sedna Star. It can fly away. As long as it does not collide with it, people will not
Will care about its final fate.
When the joy in his heart finally subsided, Zhao Changxing stopped people's noise and celebration.
"The disaster has not completely passed yet." Zhao Changxing said: "Don't be too happy yet."
Although the main body of the asteroid will not collide with it, many rock fragments fell off it in the previous explosion. Moreover, during the process of ejecting internal gas, some material will always break away from it and maintain its original state.
orbit. This means that there must be something else hitting Sedna.
If it were on the earth, most of these debris would turn into meteors, providing a wonderful meteor shower for people. But Sedna has no atmosphere. Any tiny debris will hit it without hindrance.
Of course, this will no longer have any impact on Sedna, but people still need to be prepared to prevent these things from directly hitting human buildings.
Their speed is comparable to bullets. Once they hit, as long as the mass is not too small, they can make holes in walls and roofs, or directly penetrate them.
"Hopefully our losses will be smaller. Otherwise, we will have to spend a lot of time repairing our buildings."
Zhao Changxing said seriously, but the smile at the corner of his mouth could not be concealed.
Compared with the main body of the asteroid hitting directly, it is just some meteors. How serious can it be?
The most dangerous time has passed.
People suppressed their joy and waited quietly for the impact to pass. After the asteroid orbited Sedna for almost a week, the meteor shower impact finally ended.
"Let's go check out the situation."
Zhao Changxing immediately led a dozen people, took the Falcon 1 and Falcon 2 spacecrafts respectively, left the Spark spacecraft, and landed on Sedna.
While he was still in space and had not yet landed, Zhao Changxing saw the human structure that still maintained its overall integrity. This made his heart beat violently again. The distance was getting closer and closer, and Zhao Changxing still could not see any damage.
Until the spacecraft landed completely, more than a dozen people spread out and looked at different buildings respectively. After searching carefully for more than half an hour, they finally found a 23 cm diameter hole on the roof of the yet-to-be-built No. 2 Comprehensive Base.
After a pit with a depth of only about 3 centimeters, and some rock fragments were found around it, and no damage was found, people finally confirmed that this disaster has really passed. Not only has it passed, but it has also
Basically failed to cause any damage to people's buildings.
This time, people can finally relax and celebrate thoroughly.
Looking at the people jumping several meters high on the Sedna star, listening to the warm cheers on the public communication channel, and even some uncontrollable choking, Zhao Changxing's body finally relaxed, and then he sat down on the ground.
.
"Finally, I don't have to go through the same path decades ago..."
Next, as long as the key equipment and materials transported to the Spark spacecraft are moved back, these bases, which have been built with great pains, can be put into operation again. The construction progress that was originally delayed can start again.
.
"It's just that I don't know when the gold mine will be found."
After surviving the immediate disaster, Zhao Changxing's thoughts immediately drifted to the future.
Without gold mines, future construction would still face insurmountable obstacles.
At this moment, Zhao Changxing suddenly felt a little tingling under his buttocks.
Although the gravity on Sedna is very small, and his weight is correspondingly small, it is still a bit heavy.
He subconsciously reached out and touched a stone. He took it out casually and was about to throw it away, but the special luster of the stone instantly caught his attention.
At this moment, the sun, like a spot of light, spreads light 100 times equivalent to the moon at its brightest on the land of Sedna. With the light of the sun, Zhao Changxing clearly saw that the stone in front of him exuded
Clear golden light.
It is very heavy. This means that it has a high density. It is also very soft and can be broken by hand. It also has obvious high-speed impact marks, as if it was suddenly hit on the ground.
Zhao Changxing's heart skipped a beat.
"It's gold, it's natural gold! It's natural gold that fell from that asteroid!"