Yan Xia named the new moss he discovered "Robinson", which means moss that survives in barrenness. He established a research institute on Mars, and then made some modifications to the Robinson moss, and then spread it widely on the surface of Mars. The entire Mars began to be gradually covered by these Robinson mosses within 50 years, including Olympus Mons, a super volcano as high as 26km, and Mariner Valley, the deepest canyon in the solar system, which is 7km deep into the ground. The red soil of the entire Mars is tightly grasped by these mosses, and no sandstorms will be set off even if there is any Martian wind. At the same time, Yan Xia also got a lot of water to make artificial rainfall on the surface of Mars. Due to the cold air, this rain actually fell in the form of snow, making Mars almost snow-white. A large amount of Robinson moss absorbed the snow and input it into the ground, so that the soil on Mars is no longer dry. Yan Xia believed that he could plant trees here, but he did not do so. He hoped that Mars could evolve something naturally. He found some ancient microorganisms under the surface of Mars, which would constitute the ecology of Mars in the future. After everything was ready. Ella also basically completed the placement of the new Earth.
Venus was moved to the original orbit of the Earth. Its time to orbit the sun is 24 hours, which is more accurate than the original Earth. In the end, Ella chose Europa as expected. This is not only because Europa is suitable, but also because of some emotional reasons in the past. The last planet they stayed on after leaving the solar system was Europa. They found some traces of life under the ice layer of Europa. These lives have not changed after more than 100,000 years and are still low-level. When Europa existed as a satellite of Venus, its own ice layer began to melt, and the ecology instantly lost stability and faced collapse. The highest temperature of Europa facing the sun can reach 138 degrees Celsius, and the lowest temperature of the side facing away from the sun can reach -175 degrees Celsius. The huge temperature difference makes it almost impossible for any life to survive. The liquid on Europa also evaporates under high temperature and then escapes from the surface of Europa. If this continues for thousands of years, Europa will gradually become a barren land like the moon in the past. Ella asked Yan Xia for his opinion. Yan Xia thought that the liquid ocean on Europa could actually be preserved. After all, the new earth is not mainly for living, but for building a federal college. Research is the main topic. Yan Xia does not want to rebuild the earth, and then deliberately create an environment similar to that of the 21st century, and then reminisce. That is meaningless. It's like a person in the 21st century who deliberately makes an island look like it was in ancient times and reminisces about the past. Anyone who sees it will think that his brain is sick. After Ella got the answer, she began to transform the interior of Europa, hollowed out Europa, and a large amount of material was thrown onto the surface of Venus. It is also transforming Venus at the same time. Venus has a thick atmosphere on its surface, mainly composed of carbon dioxide, and its atmospheric pressure is 92 times that of the Earth. I don't know if it was affected by gamma rays more than 100,000 years ago. The carbon dioxide on the surface of Venus is too little now, and the atmosphere is not even half of the original Earth. The original furnace has become a normal planet, but the surface can be said to be devastated. These are the results of Venus being corroded and washed by sulfuric acid rain under sulfuric acid clouds. At this time, Venus can be seen to have liquid oceans and even residual continental shelf structures. However, due to its own rotation speed and inactive core, the magnetic field strength of this planet is very small and it cannot withstand the fierce blowing of the solar wind. After that, Ella will put a lot of materials into Venus, restart its core, and make its revolution faster. This process caused some seismic activity on the surface of Venus, followed by thousands of volcanoes becoming active. There are some huge lava lakes on the surface of Venus. It still looks hideous and is not a habitable planet. But this is not a problem.
All you need to do is drop a lot of water on the surface of this planet, and what Europa lacks the least is water. Unlike what scientists in the 21st century speculated, the water resources inside Europa are actually less, only times the liquid water on the surface of the earth. Of course, this is also a huge number. These liquid waters can be used directly to cool Venus and build an atmosphere. However, Ella did not do this. Instead, she retained the liquid water of Europa and built a small super-shock material transfer device in Europa and the Oort Cloud to mine ice from Oort Cloud comets and transfer it to Europa, and then from Europa to Venus. The temperature of Venus' atmosphere and surface will melt these ice layers to form regional rainfall. Don't worry about insufficient water resources, because the water in the Oort Cloud is almost 10,000 times that of the Earth's water resources, but because it is too scattered, mining is still time-consuming. Fortunately, Ella originally wanted to build a star port at the location of the Oort Cloud, and transporting ice water can be said to be the icing on the cake. Countless waters continuously cooled Venus, and a large amount of magma on Venus turned into obsidian, making the entire Venus black. At this time, a large number of robots entered the scene again, continuously developing the surface of Venus. The material from volcanic eruptions is the best fertilizer in nature. Robots began to plant trees, flowers and plants on land, and algae and some oxygen-resistant marine plants unique to other planets in the ocean. After 300 years of such transformation, the entire Venus finally became a green planet. Yan Xia stood on the land of Venus and could not even feel any difference from the previous Earth. But he understood that the planet itself, everything on the planet, and even himself had nothing to do with the Earth. His body had been transformed too many times. "Let's build a school. It doesn't need to be too luxurious. Then we will start to combine the primordial black hole and Europa." Everything we do now is very simple, and the real difficulty has not even begun. Ella used most of her computing power on the gravitational energy device. It is extremely difficult to let a gravitational energy device bind a black hole, even if it is just a micro black hole. In the past, the Federation had used many types of black hole weapons, some of which could keep black holes stable for a long time, but this long time was only a few decades or hundreds of years. This time, they needed this primordial black hole to be stable inside Europa for at least a million years, and the technology was incomparable. Speaking of this, Yan Xia remembered a strange substance that he had captured but had not used for a long time - Merkin.