Planet transformation plan, can Venus be transformed into the earth?

Leaving the earth to find a new home in space is an ancient dream of mankind, and it may become a necessary condition for our survival sooner or later.

But what if we think boldly? What if we colonize Venus, the deadliest place in the solar system? Not by building a lofty cloud city, but by creating a suitable second earth?

It may be easier than you think.

Venus is by far the hottest planet in the solar system, and its surface temperature is 460℃, which is enough to melt lead. This heat

Is caused by the most extreme greenhouse effect in the solar system. Carbon dioxide is very suitable for absorbing heat-even if the carbon dioxide content in the earth's atmosphere rises from 0.03% to 0.04%, it is warming our planet now. Venus's atmosphere contains 97% carbon dioxide.

In addition, Venus's atmospheric density is 93 times that of the Earth. Standing on the surface of Venus is like diving into an ocean about 900 meters deep. Stress will kill you immediately. This is really a terrible place! Then why should we disturb it?

First of all, Venus is almost as big as the earth, with 90% surface gravity. When colonizing the solar system, surface gravity is a big problem, because staying in a place with low gravity for a long time is likely to have a negative impact on health. The size of Venus means that it may be the second largest habitat in the solar system. New homes for billions of people and trillions of animals. It has oceans, dense forests and beautiful blue sky. Venus, properly transformed, may be the most suitable place to live outside the earth.

Although we can't completely transform Venus today, we can have that ambitious idea in the future.

Can undertake this project. It will take several generations to complete, which is a huge challenge-just like building the Great Wall of Wan Li for our ancestors. But this does not mean that mankind has never started a project that takes more than a lifetime to complete.

All right! Then let's get started!

First, we need to cool Venus and remove the gases that make up the extremely heavy atmosphere. As mentioned earlier, there are many, about 465 million tons.

How do we do this? There are several options. We can make a huge solar collector to power a large number of laser beams, heat the atmosphere to a certain temperature and make it rise into space. Although we need thousands of times the total power generation capacity of human beings, it will take thousands of years to eliminate the atmosphere. This is obviously very laborious.

Another way is to isolate the atmosphere. Carbon dioxide combines into different compounds through chemical reactions. We can mine elements such as calcium or magnesium on Mercury and then send them to Venus through an electromagnetic emission system. These metals basically combine carbon dioxide into different carbonates forever. But the scale makes the whole thing impractical. We need hundreds of billions of tons of materials to sequester carbon dioxide in this way. It looks like a waste of materials and may take too long.

An equally absurd but practical idea is to put Venus in the shade. By building a huge mirror to block the sun, the atmosphere was frozen. Mirrors don't need to be complicated or huge, just a very thin foil and a little structural support. Building such a big plane so close to the sun will effectively turn it into a solar sail and push it out of position, so our mirror will be made up of many different parts, not a huge round object. The annular slats of angled mirrors can reflect sunlight from one set of mirrors to the next. The mirror will tilt, reflecting light from one to the other until it is redirected to the back-balancing the forces in front and fixing them in place. After several years of infrastructure construction, things began to slow down and then gradually escalated.

In the first few decades, the atmosphere will gradually get cold, but it will remain dense and deadly. Until, about 60 years later, the critical temperature of 3 1 celsius was reached. Suddenly, Venus began to flood. Under this pressure, carbon dioxide turned into liquid and began to rain-a global rainstorm that lasted for 30 years, with an incredible proportion.

. Pressure and temperature suddenly began to drop synchronously. For nearly a century, puddles have become lakes and oceans. Now the surface temperature is -56 degrees Celsius, and the pressure has dropped to seven times that of the earth. Finally, at a very unpleasant -8 1, the ocean of carbon dioxide began to freeze and the rain turned into snow. This left us with a frozen Venus, covered with a rock-hard ocean and a huge carbon dioxide glacier.

Most of the rest of the atmosphere is nitrogen, which is about three times the surface pressure of the earth. If you don't mind freezing to death and suffocation, you can walk on the surface of Venus now. But frozen carbon dioxide is still a problem. At some point, we want to warm Venus, but if we do this, carbon dioxide ice will melt and fill the atmosphere again. So we need some ways to stop it from doing so.

One is to simply cover it with cheap plastic insulation and then cover it with ground Venus rock. Although some planetary scientists will be very nervous because we have built a new planet, a potential time bomb. Some unfortunate timing volcanoes may melt a lot of carbon dioxide at one time and destroy everything. Another obvious solution is to launch it all into space and collect it on a small satellite for storage and future use. We can improve efficiency by using mass drivers instead of rockets, but moving all the mass is still a rather fierce challenge that will take some time to solve.

No matter what we finally do to the atmosphere, we need water in order to advance this project. We can use ice and snow to get water from satellites. Jupiter's moon Europa has twice as much water as the earth's oceans. It is not easy to capture and transport the moon to the solar system now.

Decades or centuries later, Venus will be covered by a beautiful shallow frozen ocean hundreds of meters deep. It looks very different from today. Formed several continents and countless islands. This is starting to look a bit like our planet!

Now, the last and most magnificent stage of the earth has begun: making the atmosphere breathable and increasing life.

First, we need light. We need to heat the earth again. The last day on Venus is 5832 hours. Therefore, if we just take out our huge mirror, we will leave at least half of the cooled planet in barbecue mode. Even without a huge atmosphere, the temperature will reach unbearable levels. The easiest way to create a day-night cycle and let some energy enter again is to use another set of mirrors to circulate in space, illuminate our continent and melt our oceans. This will enable us to completely control the energy we get and where it goes.

Now the atmosphere is mainly composed of nitrogen, and there is basically no oxygen. So the earliest inhabitants may be trillions of cyanobacteria, which can carry out photosynthesis and release oxygen. We know that they can quickly reverse the earth's atmosphere, because billions of years ago, they may be responsible for transforming the toxic atmosphere of our young earth into an atmosphere where animals with enough oxygen are more complex. But not only that-cyanobacteria can fix nitrogen in the atmosphere and convert it into nutrients for biological use. In this way, they can basically fertilize our dead seawater and prepare for more complex creatures. On land, as colonists, we need to grind some pre-Venus surfaces to provide soil for the growth of nitrogen-fixing plants. Eventually, billions of trees will spread and form a big forest covering most parts of the mainland.

Venus will turn green.

First the ocean, then the land. In order to speed up, carbon dioxide will be released strategically to supply plants and cyanobacteria. Areas covered by plants can get extra sunlight from our orbital mirrors, so plants are active most of the day. Maybe we don't have to do this to the same plants and animals we know today. With the maturity of genetic engineering and the expansion of our understanding of genetics and life mechanism, we may only design life according to needs.

In short, it will take thousands of years for air to be breathed by human beings. In the meantime, you can wear ordinary clothes.

And an oxygen mask. Settlers will enjoy a huge new planet, full of resources and bathed in the sun. They may come up with new ways to use the large amount of carbon dioxide, ice and nitrogen running in space.

Venus has been completely globalized. Animals roam in a vast ecosystem. The city is under construction. Billions of settlers and their descendants have made this world their home. They will see images of the past. How Venus became the most dangerous planet. How to freeze hell and sail in the ocean takes hundreds of years, and then it takes thousands of years to breathe freely. They can hardly believe it.

Maybe it's not so easy for Venus on Earth. Before this future becomes a reality, many things must go smoothly. But it is possible, and this technology is within the ability of a motivated, slightly advanced person who wants to venture into space. The only thing that can stop it is our imagination. This is at least an easy problem to overcome. Think about it, your imagination is the only thing that stops you from doing all kinds of things.