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Can humans build cities in the depths of Venus to survive?

The solar system, from the inside out, is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Shortly after the formation of the solar system, the environments of the three rocky planets were very similar, and all of them had the opportunity to give birth to life. These three planets are Venus, Earth and Mars.

solar system

The position of the solar system livable zone is not eternal, it will move outside the solar system with the brightness of the sun. The luminosity of the sun will increase by 10% every10 billion years. In other words, the livable zone of the solar system more than 654.38 billion years ago was closer to the sun than it is now. Venus was once in the best position in the livable zone.

Venus

Venus and Venus have a mass of 865438+ 0.5% of the Earth and a volume of 86.6% of the Earth. And the earth are simply twin brothers. Venus once had oceans, very similar to the early earth. A violent impact billions of years ago may have changed all this. The impact changed its rotation direction, from counterclockwise (looking down from the North Pole) to clockwise (the sun rises in the west and sets in the east), and the rotation speed was greatly slowed down. A day on Venus is 243 Earth Days, which is longer than a year on Venus (224.7 Earth Days). At this speed, there can be no "generator effect" inside. Of course, it may also be caused by its core cooling or insufficient convection. Without the generator effect, the solar wind will directly act on the atmosphere. Lighter particles (hydrogen, helium and oxygen) are accelerated by the solar wind, reaching escape speed and escaping into space.

The deflection of the earth's magnetic field to the solar wind (solar wind is charged particles) can also save the heavy carbon dioxide gas near the ground, because Venus has a large mass. This makes the carbon dioxide content in the atmosphere of Venus reach 96%. Carbon dioxide is a greenhouse gas, which can keep the infrared radiation on the ground in the atmosphere and raise the surface temperature to 462℃. No life can survive at such a high temperature.

Underground city

It can be said that if Venus and Mars can always have geomagnetism, then it is very likely that life can be born on both planets like the Earth. It will take a long time for humans to build cities in the depths of Venus.