In the space base, the scientific researchers of the Ocean 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, which should be accurate to 0.01 seconds!

The Venus rotates at a speed of 48 kilometers per second, and the railgun attacks at a speed of 500 kilometers per second - in order to pursue absolute precision control, only the functions of the electromagnetic science part are used.

Then there is the speed of the asteroid, which is temporarily 52 kilometers per second, and is catching up with Venus relatively quickly.

Venus in this world, because of its diameter of 14,000 kilometers, orbits at a speed of 8.4 kilometers per second and escapes at a speed of 11.9 kilometers per second.

At the last moment, the asteroid must reduce its velocity from 52 kilometers per second to 8.4~11.9 in order to facilitate the gravitational capture of Venus. Of course, the distance from Venus should not be too far, and it should be controlled within 30,000 kilometers as much as possible.

At this time, the distance between Venus and the Celestial Yuan Star is more than 8,000 kilometers, and when the asteroid arrives near Venus, the distance between Venus and the Celestial Yuan Star will be about 83 million kilometers.

On a scale of 83 million kilometers, there are too many factors to consider when launching a railgun shell on Tianyuan Star to accurately hit an asteroid in motion.

The trajectory of an asteroid, the deceleration effect of a spacecraft and engine, the gravitational pull of Venus, the gravitational pull and interference of the Sun on an asteroid.

The rail cannon shell flies 83 million kilometers in the void, and the gravitational pull of the sun is also taken into account - and when it is just launched, because it is too close to the Tian Yuan Star, the gravitational pull of the Tian Yuan Star and even the gravitational pull of the Moon must also be considered. When you reach the vicinity of Venus, you will also be subject to the gravitational pull of Venus.

When fired, the speed of the railgun shell is 500 kilometers per second, and due to the gravitational pull of the sun, it is calculated that when approaching Venus, the speed will reach 547 kilometers per second.

Finally, the rail gun's shells need to cross an irregular curve and cross one-sixth of the orbital distance of Venus to hit a small ice planet.

The diameter of the first ice planet was 800 kilometers, and in order for the rail gun to shatter the planet with one shot, it had to hit the bull's-eye, and the deviation could not exceed 100 kilometers.

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

And there is only one chance to attack, and the consequences of a mistake are unpredictable. Once an asteroid slows down, it hardly has a chance to accelerate again. There is a good chance that an out-of-control asteroid will hit Venus head-on.

At that time, the earth of Venus will be completely changed, and the force of the impact 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's serious, a mistake in saying no will cause Venus to go out of orbit, but it's really troublesome. At that time, the planets of the entire galaxy will be chaotic under the effect of gravity.

According to scientific calculations, once Venus deorbits, there is a 3 out of 10,000 chance that the Tianyuan Star will break away from the sun, and then be relayed by the gravitational slingshot under the gravity of the rest of the planet, until 300,000 years later, the planet will be directly ejected out of the galaxy and become a wandering planet.

Therefore, transforming the galaxy really cannot tolerate the slightest mistake.

The shells of the rail guns need to fly a distance of 83 million kilometers - in fact, because the flight trajectory is an irregular curve, in the process, Venus has to continue to move forward, the actual distance is more than 85 million kilometers.

During the flight, it is also subject to the gravitational pull of the surrounding planets, and the speed of the cannonball changes all the time. During the whole process, the shells needed 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 seconds, and the bullseye has a radius of only 100 kilometers.

This is a real challenge of the century.

For this gun, it took two years to prepare, during which countless simulations were carried out.

In the command center, a large display screen is displaying various calculation data, and various tracks are appearing. The massive data waterfall is generally brushed, and even the master of the cave void has no time to memorize all the data.

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

The time difference between the three asteroids is ten days before and after, as the reserved adjustment time. No one can guarantee that the process will be completely smooth.

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

Zhang Hao knows very well that the pressure on the researchers is already great enough, and instead of promoting it, he has doubled the pressure on them. Proper pressure is good, but excessive pressure will make them make mistakes and even collapse! Everyone has been preparing for two years, and I believe they can do it well.

Time passed little by little, and the first asteroid finally flew over Venus and went a long way. At this point, the spacecraft and the plasma engine mounted on the asteroid began 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 obsolete engines, as well as some experimental engines, have migrated to asteroids. The first asteroid was home to six spacecraft and six hundred engines.

As the engine ignites, the asteroid lowers at a rate of almost one meter per second.

As the asteroid's speed decreases, it is gradually pulled by the sun's gravity and begins to fall. As you can see from the computer monitor, the asteroid's orbit is beginning to tilt significantly and become steeper.

The computers were running wildly, and the staff were staring at their work seriously.

As the commander-in-chief of the project, Shen Minghai stood straight.

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

If personnel want to walk normally, and general tools and equipment want to be stable, they need to use shoes and pads with magnets. A large number of devices are fixed directly to the ground. If you want to eat, you need to get out of here and head to the revolving restaurant.

At this time, in this huge command room with an area of more than 20,000 square meters, there is almost only the sound of machines running, and there is also a clear sound of breathing.

Time ticks and slips away.

At a certain moment, when the time began to count down, Shen Minghai ordered: prepare to launch the starry sky cannon.

The Starry Sky Cannon began to ignite and accelerate, and after 17 minutes, 27 seconds and 195 milliseconds, the Starry Sky Cannon exploded, and the Starry Sky Cannon that was accelerating forward seemed to be kicked and stopped suddenly, and then began to fall under the gravitational pull of Tianyuan Star.

The crew immediately adjusted, and just ten minutes later, the Star Cannon was once again ready for launch.

In front of Venus, more than 30 hours later, the speed of the first asteroid has gradually slowed down to the design speed. The spacecraft and crew on the asteroid are busy.

The brackets fixed to the surface of the asteroid were cut one after another, and one by one the engines and nuclear islands were moved to the spaceship.

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

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

But Venus has caught up behind, and the gravitational pull of Venus has caused the asteroid to slow down. After seven hours of this contest, Venus finally captured the asteroid perfectly.

However, the asteroid had just circled Venus less than half a circle, and the cannonball of the starry sky cannon, after 45 hours, 14 minutes, 27 seconds and 106 milliseconds, flew 85.18 million kilometers and accurately hit the asteroid.

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

Then, the crew of the spacecraft near Venus witnessed the epic scene with their own eyes, and the people in the rear, and even the world, saw the live broadcast through the spacecraft, satellites, and probes, and it was a computer-synthesized, all-round rendering.

The whole process, in the eyes of the onlooker, is:

The ice planet flew on its own, about 120,000 kilometers away near the periphery of Venus's orbit, a distance of a little gravitational pull, but not much, but this small change is already being considered.

Due to the gravitational pull of Venus, the asteroid's orbit is slightly deflected towards the Sun and its speed is also slightly reduced. At the same time, the orbit and speed of Venus also change slightly, but almost negligibly.

In this process, the seals on the asteroid have been broken in large quantities, and under the sun's irradiation, a tail is dragged out from behind the asteroid.

When the asteroid completely overtakes Venus, the tail behind the asteroid begins to fall under the gravitational pull of Venus, gradually approaching Venus, and finally connecting with Venus.

At this moment, it looks like Venus grabbing the big tail of an asteroid.

Then there was a large number of plasma engine flames in front of the asteroid, and the flames rushed into space for thousands of meters, and the asteroid's speed decreased rapidly.

As the asteroid slows down, the asteroid begins to fall toward the Sun, but at a slower rate, while Venus in the rear pursues faster – clutching the asteroid's tail.

When the asteroid falls from the outer side of Venus's orbit to the inner side of Venus' orbit, and is 18,000 miles perpendicular to Venus's orbit (Venus' radius is 7,000 kilometers), the relative velocity of the asteroid relative to Venus is reduced to 9.5 kilometers per second, and the asteroid is completely captured by Venus. (Note)

At this moment, the steam of the asteroid is rolling towards Venus. In fact, at this moment, even if the railgun is not attacked, the asteroid will evaporate little by little and be absorbed by Venus within a thousand years.

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

The asteroid is captured by the gravitational pull of Venus and rotates around Venus in a small half circle, and the asteroid is just between the Celestial Yuan Star and Venus.

And at this moment, the cannonball of the starry sky cannon accurately hit the asteroid.

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

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

The entire asteroid debris rushed into the atmosphere of Venus with a huge amount of kinetic energy.

For a time, Venus's atmosphere was lit up by meteors. The crushed ice rubs violently against the atmosphere, and the temperature can reach more than 3,000 degrees, and the steam, scorching hot air exhibits the characteristics of combustion.

Because the asteroid structure is dominated by ice, coupled with the impact of the starry sky cannonball, the collapsed ice itself has been densely cracked, and after entering the atmosphere of Venus, the violent collision caused a large number of ice blocks to break, and in the process of falling, it continued to evaporate and collapse due to friction with the atmosphere.

Less than 10 percent of the ice eventually fell to the ground. However, because most of the ice is already fragile and full of cracks, most of the ice breaks when it touches the ground, and has limited impact on the surface of Venus. Only a small amount of ice, and most of the rock core fragments, have an impact on the surface of Venus.

On the whole, under the strict calculations of the technical staff of the Ocean Group, the structure of Venus has not been damaged.

On the contrary, these broken ice and water vapor carry a huge kinetic energy, which is the kinetic energy of an entire asteroid, and these kinetic energy first caused the atmosphere of Venus to rush 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 and so on, which hit and drove Venus to rotate.

And the disturbed atmosphere is gradually accelerating Venus.

In the five days following the impact, the speed of the Venusian winds finally slowed below the speed of sound, and Venus began to rotate.

A large amount of ice entered Venus, causing the atmosphere of Venus to double, and endless water vapor crisscrossed the atmosphere of Venus, with lightning and thunder. On the golden planet, thick dark clouds appeared. The temperature of the atmosphere of Venus has dropped by 100 degrees!

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

(Note: Regarding the speed of the planet's capture of asteroids, I checked a lot of information, and the more I looked at it, the more confused I became~ I always felt that the description was a little wrong.) It seems that there should be little difference in the speed of the two planets, not a slowdown on one planet. But I didn't turn the corner~)