Venus never could and cannot have oceans. This is the conclusion made by Swiss and French astronomers after conducting digital simulations. The research article was published in the journal Nature.
With the help of modern research methods, scientists were able to establish that after its appearance, which took place 4.5 billion years ago, Venus was covered with magma. For the oceans to appear on the planet’s surface, the temperature of the atmosphere had to drop to such a level that, over several thousand years, water would condense and fall out in the form of precipitation. But such a drop in temperature would require protection of Venus from the sun’s rays.
The clouds were able to form only on the night side of the planet, where they could not protect it from the sun’s rays. Accordingly, water vapor was unable to condense and turn into oceans. The water on Venus remained in the form of steam, scientists concluded.
The earth, in turn, thanks to the weak radiation of the then Sun, cooled well, and this led to the appearance of water in the form of raindrops, and then the oceans.
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