Chapter 1079: Cracked

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At the space base, the research staff of the Ocean Group is busy.
The transformation of Venus is by no means as simple as it seems. A series of data must be carefully checked. The most important thing is time, to be accurate to 0.01 seconds!
The orbital speed of Venus is 48 kilometers per second, and the attack speed of the rail gun is 500 kilometers per second-in order to pursue absolute precision control, only the functions of electromagnetic science are used.
Then there is the flight speed of the asteroid. The temporary flight speed is 52 kilometers per second, which is catching up with Venus relatively quickly.
Venus in this world has a diameter of 14,000 kilometers, an orbital speed of 8.4 kilometers per second, and an escape speed of 11.9 kilometers per second.
At the last moment, the asteroid must reduce its speed from 52 kilometers per second to between 8.4 and 11.9 to allow Venus' gravity to capture. Of course, the distance to Venus should not be too far, and it should be controlled within 30,000 kilometers.
At this time, the distance between Venus and Uranus is more than 8,000 kilometers; when the asteroid reaches near Venus, the distance between Venus and Uranus will also be extended to about 83 million kilometers.
At a scale of 83 million kilometers, launching a shell of a rail cannon on Uranus to accurately hit a moving asteroid requires too many factors to consider.
The asteroid's flight trajectory, the deceleration effect of the spacecraft and the engine, the gravitation of Venus, the gravitation and interference of the sun on the asteroid.
The rail cannon projectiles fly 83 million kilometers in the void, we must also consider the gravity of the sun-and when it was just launched, because it was too close to the Uranus, we must also consider the gravitation of the Uranus and even the moon. When it reaches near Venus, it will be under the gravity of Venus.
At launch, the speed of the rail cannon projectile is 500 kilometers per second; affected by the gravity of the sun, according to calculations, when approaching Venus, the flight speed will reach 547 kilometers per second.
Finally, the shells of the rail guns need to cross an irregular curve, span one-sixth of the orbit distance of Venus, and hit a small ice planet.
The diameter of the first ice planet is 800 kilometers, and if the rail cannon crushes the planet in one shot, it must hit the bullseye, and the deviation cannot exceed 100 kilometers.
According to the target calculation, it must be within 8 rings.
And there is only one chance for the attack, and the consequences are unpredictable in the event of a mistake. Once the asteroid decelerates, there is almost no chance to accelerate. The runaway asteroid is very likely to hit Venus.
At that time, if it is light, Venus will completely change the ground, and the impact force is enough to reshape the entire Venus, and it will take tens of thousands of years to stabilize. And after the impact, the resource locations on Venus, which have been explored for more than two years, will all disappear.
To be serious, the one who says no carelessly will cause Venus to go out of orbit, but it is really troublesome. At that time, the planets of the entire galaxy will be chaotic under gravity.
According to scientific calculations, once Venus derails, three-tenths of the celestial planet may be out of the sun, and then it will be first-order relayed by the gravitational slingshot under the gravity of the remaining planets. Until 300,000 years later, the planet will be ejected directly out of the galaxy. , Become a wandering planet.
So, transforming galaxies really does not tolerate any mistakes.
The shells of the rail guns need to fly 83 million kilometers-in fact, because the flight trajectory is an irregular curve, in this process, Venus will continue to move forward, and the actual flight distance is more than 85 million kilometers.
During the flight, it is subject to the gravity of the surrounding planets, and the shell speed is constantly changing. In the whole process, the time required for the shell to fly is about 45 hours.
There are so many difficulties, the time when the rail gun hits the target must be accurate to 0.01 seconds, and the bullseye has a radius of only 100 kilometers.
This is a real challenge of the century.
For this shot, it took two full years to prepare, during which countless simulation calculations were carried out.
In the command center, various calculation data are being displayed on the huge display screen, and various tracks appear. Massive data waterfalls are generally brushed over, and even the masters of dongxu have no time to remember all the data.
The orbits of different colors displayed on the screen include the orbits of Venus, the orbits of three asteroids, the orbits attacked by giant star cannons, and the evacuation orbits of the spacecraft.
The time difference between the three asteroids is ten days apart, which is used as the reserved adjustment time. No one can guarantee that this process will be completely smooth.
Zhang Hao sat quietly in the live broadcast room on the ground and did not enter space.
Zhang Hao is very clear that the pressure of the researchers is already large enough. Instead of promoting it, they have doubled their pressure. Appropriate pressure is good, but excessive pressure will make them mistakes and even collapse! Everyone has been preparing for two years, I believe they can do well.
A little bit of time passed, and the first asteroid finally flew to Venus, and exceeded a long distance. At this time, the spacecraft and the plasma engine mounted on the asteroid began to work, and the asteroid began to decelerate.
After two years of development, the plasma engine technology has been updated to the fourth generation, and a large number of obsolete engines and some experimental models have migrated to asteroids. On the first asteroid, six ships and six hundred engines were gathered.
As the engine ignites, the asteroid decreases at almost one meter per second.
As the speed of the asteroid decreases, it is gradually pulled by the gravity of the sun and begins to fall. As you can see from the computer display, the orbit of the asteroid begins to tilt significantly and becomes steeper.
The computer is running crazy, and the staff is staring at their work seriously.
As the commander of the project, Shen Minghai stood upright.
In fact, there is no gravity in the space base at this time. In order to reduce interference, even rotating artificial gravity does not. This state has been true since the establishment of this space command center.
People want to walk normally, and general tools and equipment want to be stable, they need to use shoes and pads with magnets. A lot of equipment is directly fixed to the ground. If you want to eat or drink, you need to leave here and go to the revolving restaurant.
At this time, in this huge command room with an area of ​​more than 20,000 square meters, there was almost only the sound of the machine running and the obvious breathing sound.
Time ticks and slips away.
At a certain moment, when the time started to count down, Shen Minghai ordered: ready to launch a starry sky cannon.
The starry sky artillery began to ignite and accelerate. After 17 minutes, 27 seconds and 195 milliseconds, the starry sky artillery exploded suddenly. The starry sky artillery was accelerating and seemed to be kicked and suddenly stopped; then under the gravity of Tianyuanxing, it began to fall.
The staff immediately adjusted, and just ten minutes later, the starry sky artillery was once again ready for launch.
In front of Venus, more than thirty hours later, the speed of the first asteroid has gradually decreased to the design speed. The spacecraft and staff on the asteroid are busy.
Everyone cut off the brackets fixed on the surface of the asteroid one after another, and the engines and nuclear islands were removed and moved to the spacecraft.
In just eight hours, the spacecraft quickly took off, and the six spacecraft rushed out of the planet with more than 600 engines.
At this time, the asteroid is falling under the gravity of the sun, accelerating a little, and the speed begins to increase.
But Venus in the rear has already caught up, and Venus' gravity has caused the asteroid to slow down. After seven hours of this contest, Venus finally captured the asteroid perfectly.
However, the asteroid just reached a half circle around Venus. The shells of the starry cannon, after 45 hours, 14 minutes, 27 seconds and 106 milliseconds, leapt 85.18 million kilometers and hit the asteroid accurately.
The hit position is about 80 meters from the bullseye, almost missed the target,
Then, the staff on the spacecraft near Venus witnessed the epic scene firsthand; the people in the back, and even the whole world saw the live broadcast through the spacecraft, satellites, and detectors, and it was a computer-generated, all-round effect. Figure.
The whole process, in the eyes of bystanders:
The ice planet first flew on its own, stuck to the outer periphery of Venus' orbit, and flew about 120,000 kilometers away. This distance has a little gravitation, but it is not large; but this small change has been considered.
Affected by Venus' gravity, the asteroid's orbit deflected slightly towards the Sun, and its speed decreased slightly. At the same time, Venus' flight orbit and speed also changed slightly, but it was almost negligible.
In this process, the seal on the asteroid has been damaged a lot. Under the irradiation of the sun, a tail was dragged out behind the asteroid.
After the asteroid completely surpassed Venus, the tail behind the asteroid began to fall under the gravity of Venus, gradually approaching Venus, and finally connecting with Venus.
At this moment, it looks as if Venus grabbed the asteroid's big tail.
Then a large number of flame jets from the plasma engine were in front of the asteroid. The jetted flames rushed into space for several kilometers, and the asteroid's speed decreased rapidly.
As the speed of the asteroid decreases, the asteroid begins to fall toward the sun, but the rate of decline is slower; in contrast, the rear of Venus is chasing faster-people are holding the asteroid's tail.
When the asteroid falls from the outer orbit of Venus, to the inner orbit of Venus, at a vertical distance of 18,000 miles from the orbit of Venus (the radius of Venus is 7000 kilometers), the relative velocity of the asteroid relative to Venus is reduced to 9.5 kilometers per second, and the asteroid is completely destroyed by Venus. capture. (Note ①)
At this moment, the steam of the asteroid rushed to Venus. In fact, at this moment, even without the rail cannon attack, the asteroid will evaporate and be absorbed by Venus within a thousand years.
However, Venus does not have a magnetic field and cannot protect the atmosphere. Water vapor will be taken away by the solar wind a little bit.
The asteroid is captured by Venus' gravity and rotates around Venus in a small circle. At this time, the asteroid is just between Uranus and Venus.
And at this moment, the shells of the starry sky cannon hit the asteroid accurately.
I saw the asteroid tremble, the surface quickly collapsed from the direction of the attack, a crack quickly spread, and a large number of tens of kilometers of ice flake off the planet.
At the next moment, the entire planet collapsed and turned into endless broken ice. Under the impact of artillery shells, a large amount of crushed ice and rocky star cores quickly fell towards Venus.
The entire asteroid fragment rushed into Venus' atmosphere with huge kinetic energy.
For a time, the atmosphere of Venus was lit by meteors. The crushed ice and the atmosphere are vigorously rubbed, the temperature can reach more than 3,000 degrees, and the steam and hot air show burning characteristics.
Because the asteroid structure is dominated by ice, combined with the impact of the starry sky artillery shells, the collapsed ice itself has been densely cracked. After entering the atmosphere of Venus, a violent collision caused a large amount of ice to break. Atmospheric friction evaporates and collapses.
Only less than 10% of the ice eventually fell to the ground. But because most of the ice is already very fragile and covered with cracks, most of the ice breaks when it touches the ground, which has a limited impact on the surface of Venus. Only a little ice, and most of the rock core fragments, have affected the surface of Venus.
Overall, under the strict calculation of the technical personnel of the Ocean Group, the structure of Venus has not been damaged.
On the contrary, these broken ice and water vapor have huge kinetic energy, which is the kinetic energy of an entire asteroid. These kinetic energy first caused the atmosphere of Venus to surge like a tsunami, and part of the atmosphere of Venus was directly knocked out of the planet and out of gravity.
There are also some debris that impact and drive Venus to rotate.
The disturbed atmosphere gradually accelerated Venus.
Within five days of the impact, the speed of Venus’ gust was finally reduced below the speed of sound, and Venus also began to rotate.
And a large amount of ice enters Venus, causing the atmosphere of Venus to double, and endless water vapor in the atmosphere of Venus, lightning and thunder. On the golden planet, thick dark clouds appeared. The atmospheric temperature of Venus has dropped by one Baidu!
But because the crust of Venus itself is in a molten state, and the energy of the impact, the temperature is rising rapidly.
(Note ①: I checked a lot of information about the speed of the planet to capture the asteroid, and the more I looked at it, the more confused it was. I always felt that the description was a bit wrong. It seems that the speed of the two planets is not much different, not the speed of one planet. But no. Turn around~)
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