Chapter 1079

In the space base, the researchers of Dayang Group are busy.

The transformation of Venus is by no means as simple as it seems, and a series of data must be carefully checked. The most important thing is the time, accurate to 0.01 second!

The revolution speed of Venus is 48 kilometers per second, and the attack speed of the railgun is 500 kilometers per second—in order to pursue absolutely precise control, only the functions of the electromagnetic science part are used.

Then there is the flying speed of the asteroid. The temporary flying speed is 52 kilometers per second, and it is catching up with Venus relatively quickly.

And Venus in this world has a diameter of 14,000 kilometers, an orbital velocity of 8.4 kilometers per second, and an escape velocity 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 in order to be captured by the gravity of Venus. Of course, the distance from Venus should not be too far, try to keep it within 30,000 kilometers.

At this time, the distance between Venus and Tianyuan star is more than 80 million kilometers; when the asteroid arrives near Venus, the distance between Venus and Tianyuan star will be extended to about 83 million kilometers.

On the scale of 83 million kilometers, there are too many factors to consider in order to accurately hit a moving asteroid by launching a railgun shell on Tianyuanxing.

The flight path of the asteroid, the deceleration effect of the spacecraft and the engine, the gravitational force of Venus, the gravitational force and interference of the sun on the asteroid.

Railgun shells fly 83 million kilometers in the void, and the gravitational force of the sun must also be considered—and when it was just launched, because it was too close to the Tianyuan star, the gravity of the Tianyuan star, and even the moon’s gravity, had to be considered. When it reaches the vicinity of Venus, it will also be subject to the gravitational pull of Venus.

When launching, the speed of the railgun shell is 500 kilometers per second; affected by the gravity of the sun, according to calculations, when approaching Venus, the flying speed will reach 547 kilometers per second.

Finally, the railgun's shell needs to cross an irregular curve, spanning one-sixth of the orbital distance of Venus, and hit the small ice planet.

The diameter of the first ice planet is 800 kilometers, and if the railgun wants to smash the planet with one shot, it must hit the bullseye, and the deviation cannot exceed 100 kilometers.

According to the calculation of the target, it must be within 8 rings.

Moreover, there is only one chance to attack, and the consequences of a mistake are unpredictable. Once an asteroid slows down, it has little chance of speeding up again. There's a good chance a runaway asteroid could crash head-on into Venus.

At that time, if it is light, the land of Venus will be completely changed, and the impact force will be 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 that have been explored for more than two years will all disappear.

If it is serious, if you say no, one carelessness will cause Venus to go out of orbit, but it will be really troublesome. At that time, the planets in the entire galaxy will be in chaos under the effect of gravity.

According to scientific calculations, once Venus deorbits, there is a three-in-ten-thousandth chance that Tianyuan will break away from the sun, and then it will be relayed by a gravitational slingshot under the gravitational force of other planets until 300,000 years later, the planet will be directly ejected out of the galaxy , becoming a wandering planet.

Therefore, there is really no tolerance for mistakes in transforming the galaxy.

The shells of the railgun need to fly a distance of 83 million kilometers-in fact, because the flight trajectory is an irregular curve, Venus will continue to move forward during this process, and the actual flight distance exceeds 85 million kilometers.

During the flight, it is also subject to the gravitational force of the surrounding planets, and the speed of the shell is changing all the time. During the whole process, the shell needs to fly for about 45 hours.

With so many difficulties, the time for the rail gun to hit the target must be accurate to 0.01 second, and the bullseye is only 100 kilometers in radius.

This is a real challenge of the century.

For this shot, it took two 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 swiped, and even the masters of Dongxu have no time to memorize all the data.

The orbits of different colors displayed on the screen include the orbit of Venus, the orbit of three asteroids, the orbit of the star cannon attack, and the evacuation orbit of the spacecraft.

The time difference of ten days between the three asteroids is used as the reserved adjustment time. There is no guarantee that this process will be completely smooth.

Zhang Hao sat quietly in the live broadcast hall on the ground, and did not enter space.

Zhang Hao is very clear that the pressure on the researchers is already great enough, and instead of promoting it by himself, it will double their pressure. Appropriate pressure is good, but excessive pressure will make them make mistakes and even collapse! We have been preparing for two years, I believe they can do well.

Little by little time passed, and the first asteroid finally flew past Venus and traveled a long distance. At this time, the spacecraft and the plasma engine installed on the asteroid started to work, and the asteroid began to slow down.

After two years of development, the plasma engine technology has been updated to the fourth generation, and a large number of eliminated models, as well as some experimental models, have migrated to the asteroid. On the first asteroid, there are six spaceships with six hundred engines.

As the engine ignited, the asteroid dropped at almost a meter per second.

As the speed of the asteroid decreases, it is gradually pulled by the sun's gravity and begins to fall. It can be seen from the computer screen that the orbit of the asteroid began to tilt significantly and become steeper.

The computer was running wildly, and the staff stared at their work seriously.

Shen Minghai, as the general director of the project, stood upright.

In fact, there is no gravity in the space base at this time, in order to reduce interference, there is not even artificial gravity in rotation. Such a state has been like this since the establishment of this space command center.

If people want to walk normally, and general tools and equipment want to be stable, they all need shoes and pads with magnets. A large amount of equipment is directly fixed to the ground. If you want to eat, you need to get out of 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 were almost only the sound of machines running, and the obvious sound of breathing.

Time is ticking, slipping away little by little.

At a certain moment, when the time began to count down, Shen Minghai gave an order: Prepare to launch the star cannon.

The starry sky cannon started to ignite and accelerate. After 17 minutes, 27 seconds, and 195 milliseconds, the starry sky cannon exploded. The starry sky cannon that was accelerating seemed to be kicked and stopped suddenly. Then, under the gravity of Tianyuan star, it began to fall.

The staff immediately adjusted, and only ten minutes later, the star cannon was ready to launch again.

In front of Venus, after more than 30 hours, 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 moved the engines and nuclear islands away and moved them to the spaceship.

In just eight hours, the spacecraft took off quickly, and six spacecraft rushed out of the planet with more than 600 engines.

At this time, the asteroid is falling under the gravitational force of the sun, accelerating and falling a little bit, and the speed begins to increase.

But Venus has caught up behind, and the gravity of Venus makes the asteroid start to slow down again. After seven hours of this contest, Venus finally captured the asteroid perfectly.

But the asteroid had just circled Venus less than half a circle, and after 45 hours, 14 minutes, 27 seconds and 106 milliseconds, the shells of the Star Cannon flew 85.18 million kilometers and hit the asteroid precisely.

The hit part was about 80 meters away from the bull's-eye, and it almost missed the target.

Then, the staff on the spaceship near Venus witnessed the epic scene with their own eyes; the people in the rear, and even the whole world saw the live broadcast through the spaceship, satellites, and detectors, and it was a computer-synthesized, all-round effect picture.

The whole process, from the perspective of a bystander, is:

The icy planet first flies by itself, sticks to the outer periphery of Venus' orbit, and flies by about 120,000 kilometers away. This distance has a little gravitational force, but not much; but this small change has been considered.

Affected by the gravity of Venus, the orbit of the asteroid is slightly deflected towards the sun, and the speed is also slightly reduced. At the same time, the orbit and speed of Venus also changed slightly, but they were almost negligible.

During this process, a lot of seals on the asteroid have been damaged, and under the sun's irradiation, a tail is dragged out from behind the asteroid.

And when the asteroid completely surpassed Venus, the tail behind the asteroid began to fall under the gravitational force of Venus, gradually approaching Venus, and finally connected with Venus.

At this moment, it looked as if Venus had grabbed the asteroid's big tail.

Then there was a large number of flame jets from plasma engines in front of the asteroid, and the jet flames rushed thousands of meters into space, and the speed of the asteroid decreased rapidly.

As the speed of the asteroid decreases, the asteroid begins to fall towards the sun, but at a slower rate; in contrast, the pursuit speed of the rear Venus is faster-people are holding the tail of the asteroid.

When the asteroid falls from the outside of the orbit of Venus to the inside of the orbit of Venus, and the vertical distance from the orbit of Venus is 18,000 miles (the radius of Venus is 7,000 kilometers), the relative speed of the asteroid relative to Venus decreases to 9.5 kilometers per second, and the asteroid is completely covered by Venus. capture. (Note ①)

At this moment, the steam from the asteroid rushed towards Venus. In fact, at this moment, even if there is no railgun attack, the asteroid will gradually evaporate and be absorbed by Venus within a thousand years.

However, Venus has no magnetic field and cannot protect the atmosphere, and the water vapor will be carried away by the solar wind a little bit.

The asteroid is captured by the gravity of Venus and revolves around Venus for a small half circle. At this time, the asteroid is just between the Tianyuan star and Venus.

And at this moment, the shells of the Star Cannon precisely hit the asteroid.

I saw the asteroid tremble suddenly, the surface collapsed rapidly from the direction of the attack, cracks spread rapidly, and a large amount of ice tens of kilometers in size peeled off from the planet.

The next moment, the entire planet collapsed and turned into endless shards of ice. Under the impact of the shells, a large amount of crushed ice and rocky star cores quickly fell towards Venus.

The entire asteroid fragment rushed into Venus' atmosphere with enormous kinetic energy.

For a moment, the atmosphere of Venus was lit up by meteors. The crushed ice rubs against the atmosphere fiercely, the temperature can reach over 3,000 degrees, and the steam and scorching air show the characteristics of combustion.

Because the structure of the asteroid is mainly ice, coupled with the impact of the cannonballs in the starry sky, the collapsed ice itself is already densely covered with cracks. After entering the atmosphere of Venus, the violent collision caused a large number of ice blocks to break up. The atmosphere is constantly evaporating and collapsing due to friction.

Only less than 10% of the ice finally fell to the ground. But because most of the ice is already very fragile and full of cracks, most of the ice shatters when it touches the ground, and has limited impact on the surface of Venus. Only bits of ice, and mostly fragments of the rocky core, have affected the surface of Venus.

On the whole, under the strict calculations of Dayang Group's technicians, the structure of Venus has not been damaged.

On the contrary, these shattered 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.

Also, through some fragments, etc., it impacted and drove the rotation of Venus.

And the disturbed atmosphere gradually accelerated Venus.

Five days after the impact, Venusian winds finally slowed below the speed of sound, and Venus began to spin.

And a large amount of cold ice entered Venus, causing the atmosphere of Venus to double, and endless water vapor criss-crossed in the atmosphere of Venus, causing lightning and thunder. Thick dark clouds appeared on the golden planet. The atmospheric temperature of Venus has dropped by one hundred degrees!

But because the crust of Venus itself is in a molten state, coupled with the energy of the impact, the temperature is rising rapidly.

(Note ①: Regarding the speed of planets capturing asteroids, I checked a lot of information, and the more I read, the more confused I feel that the description is a bit wrong. It seems that the speed of the two planets is not much different, rather than one planet slowing down. But no Turn the corner~)