Countless nuclear bombs on Kara continue to explode, and the entire Kara planet has become a post-apocalyptic world.

Everything on the earth was swept away by terrifying energy, huge mushroom clouds were constantly stirring, and the dust formed a thick cloud, plunging the entire planet into boundless darkness, and the light from the stars could not shine into it at all.

Terrifying earthquakes, terrible tsunamis, super hurricanes, majestic raging energy, and the radiation of death, erupting volcanoes...... In a short period of time, this planet of top-level life that has evolved over hundreds of millions of years suddenly entered the apocalyptic world, and all life on this planet withered in an instant.

"It's really ruthless."

In the outer space of Kara Star, on the Hongwu Emperor Space Battleship, Qin Tang couldn't help but feel a little sorry when he looked at the great changes that had taken place on Kara Star.

Kara Star is a top-level life planet, with a huge area, vast land, and more importantly, a very good ecological environment, with a super high forest coverage rate, and a large area of primeval forest on it.

But now, that's all gone, and the terrifying nuclear weapons have almost destroyed the planet, turning the blue planet into a cloudy, gray planet.

"It's going to perish anyway, and it definitely won't be cheap for us."

Xue Qing on the side also nodded and said, he can understand the thoughts of the Kara civilization, anyway, the left and right are destroyed, how can they cheapen the invaders, and their own things, even if they are destroyed, will not be cheap to outsiders.

"How long will it take for this Kara star to restore its ecological environment?"

Qin Tang nodded, then thought about it and said.

The Kara civilization was destroyed by hard work, not to occupy the Kara Star, and now that the Kara Star was destroyed by nuclear weapons, the ecological environment on it must have been devastated, and there will definitely be no way to immigrate here for a while.

But scientists have a way, Mars was not a living planet that can be transformed into a living planet, this Kara star was originally a living planet, and now it has been devastating at most, but the foundation is still there, as long as it is slightly transformed, it can definitely be restored quickly.

"I don't know, so I'd better ask a professional."

Xue Qing smiled and shook his head, and then used the virtual watch to contact Song Shitong, the head of the scientific team of the Fifth Fleet, who received the news here, and soon came to the Fifth Fleet Control and Command Center.

"Old Song, you should know about the Kara Star, if this Kara Star wants to restore the ecological environment, how long will it take?"

Song Shi passed, and Qin Tang also asked with a smile.

The two of them are actually old acquaintances, Qin Tang and Song Shitong knew each other when they were in college, Qin Tang was Song Shitong's apprentice, but after graduation, one embarked on the road of scientific research, the other embarked on the road of soldiers, and now they are working together in the Fifth Fleet.

"It depends on the degree of destruction of this nuclear weapon, judging from the data detected now, all the nuclear weapons on the Kara star are the most powerful hydrogen bombs, and each exploding hydrogen bomb is hundreds of times more powerful than the 'Big Ivan' back then, and the power is very powerful and terrifying."

"This is almost the most powerful nuclear weapon, which can absolutely destroy all the ecosystems on Kara, and the huge mushroom cloud generated by the explosion of the nuclear weapon carries a large amount of water vapor, dust, etc. into the sky of Kara, forming a very thick cloud layer in the sky, which will cause continuous damage to the environment of Karastar."

"It's not easy to restore the ecological environment of Karastar, it takes a lot of investment and it takes time."

Song Shitong looked at the Kara Star in space, and could clearly see that the clouds above were constantly rolling, lightning and thunder were roaring above, and at the same time, he could also see a huge cloud of energy stirring on the Kara Star from time to time.

In an instant, a large area of thick clouds was dispersed, but soon, with the rise of the huge mushroom cloud, the thicker clouds soon continued to spread out and connect with other surrounding clouds, constantly colliding with each other, lightning and thunder, and violent energy was constantly raging.

"We have time, I will apply to the above for the input we need, and if you need any help, you can also tell me, we laid down Kara Star, or to be able to use it for interstellar immigration, this Kara Star foundation is still there, but it can't be just barren."

Qin Tang also nodded after hearing this, and then thought about it and said.

"This Kara Star has a foundation, even if we don't help, this Kara Star will not actually take a few hundred years, and the ecology above it will gradually prosper again, and if there are thousands of years, it will soon be restored."

"Although the nuclear weapon is powerful, it only scrapes a little dirt on the surface of the planet, and it does not do much damage to the entire planet, its foundation is still there, and its own recovery ability is very strong."

"We just need to get rid of the dense clouds covering the sky of this Kara star, let the dust, water vapor, etc. fall back to the ground, so that the sunlight can shine on the surface of the planet, and the speed of recovery will be many times faster."

"Then we put plant seeds into Karaxing, and it won't take many years for the ecology of Karaxing to recover as before, but it's a pity that the original complete ecosystem must have countless valuable ecological resources."

Song Shitong smiled and nodded, roughly summarizing the steps to restore the ecological environment of Karaxing.

"Then trouble Lao Song, you can finish it early, we can also leave here as soon as possible and continue to fight in the starry sky, our Fifth Fleet is still lacking in grinding, this time against the Kara civilization can be seen, there is still a lot of grinding, grinding."

Hearing Song Shitong's words, Qin Tang also put his mind at ease, this life planet, its value is infinite, and naturally it cannot be given up easily.

Time passed slowly, and after a few days, there were no more nuclear explosions on Kara, and the raging energy slowly calmed down, and the entire planet was covered in thick dense clouds.

The Second and Third Fleets have also left Sirius and are preparing to return to the solar system, ending this short campaign, and then it is a long wait, waiting for Xinghan's next external expansion.

The Fifth Fleet has temporarily stayed here in the Sirius system, on the one hand, they have to clean up the remnants of the Kara civilization on some planets in the Sirius system, and the most important job is to restore the ecological environment of Kara.

From the space warships of the Fifth Fleet, unmanned space fighters flew Kara again, passed through the thick clouds, and descended on a world like the end of the world.

At this time, on the planet Kara, the original prosperous city disappeared cleanly, leaving only a few ruins that seemed to announce the glory of the Kara civilization.

The original vast primeval forest disappeared, and in the primeval forest, the Kara civilization also detonated a lot of nuclear weapons, completely destroying the primeval forests one by one, leaving only a few bare tree trunks and countless falling leaves to tell the prosperity of the past.

Above the ocean, the monstrous waves are constantly stirring, and the large cities near the coastline have been hit by the terrible tsunami, turning into a vast ocean.

The north and south poles of Kara, the snow-capped world, are now gray, and instead of snow, dirt, dust, leaves, branches and so on from distant regions fall from the sky.

It was raining everywhere, lightning and thunder, terrible lightning brought a glimmer of light to this dark world, the clouds were so thick that there were too much, too much earth and water vapor swept into the sky by the explosion of nuclear weapons, and the dense clouds formed were obscured by the dense clouds, and not a single ray of sunlight could shine into it.

Even the hemisphere facing the stars is no different from night, except for the thunder and lightning flashing in the sky, which illuminates the world, allowing people to see the heavy rain in the sky.

Through the camera, scientists can see all this clearly, and at the same time, they are beginning to work out ways to restore the ecological environment of Kara Star.

A large number of unmanned warplanes began to fly continuously in the sky of Kara Star, and while flying, they also continued to spread some rain-promoting substances, such as dry ice, silver iodide, etc., to promote rainfall.

The clouds on Kara are so thick that for a long time, there will be no sunlight on the surface of Kara, which is extremely detrimental to the remnants of plants and microorganisms in the ocean.

So the first step is to promote rainfall, and in the form of rainfall, these water vapor, dust, mud, etc. in the sky will fall back on the Kara star, so that the sunlight will shine on the surface of the star again.

And this step is also the most critical step that scientists believe, if it is in its natural state, with the current state of Kara, it will take a long time for these water vapor, soil, dust, etc. to completely land on Kara.

In this process, the organisms on the Kara star will be destroyed even more, the plants will die without sunlight, the microorganisms will not survive without sunlight, and the temperature on the surface of the Kara star will also drop sharply, further aggravating the deterioration of the environment.

This step can be completed in a very short period of time through manual intervention, and the plants and microorganisms on the Kara Star can continue to grow as long as there is sunlight and water, and the Kara Star will be much faster if it wants to restore the ecological environment.

With the spread of a large amount of rainfall material, it began to pour heavily in various places above Kara, and the water vapor and mud carried by the nuclear weapons fell back to the ground.