Scientists at the University of Chicago have modeled the climate of Venus in the past. Simulations have shown that in the "

But such conditions did not last long: and Venus turned into the world as we know it today, with a toxic atmosphere and incredibly high temperatures..

Planetary scientists run simulations to determine the rate and mechanisms of oxygen loss. This showed that if water existed on the planet, then it disappeared more than three billion years ago..

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The atmosphere of modern Venus is 96% carbon dioxide and 3% nitrogen, with traces of other gases such as sulfur dioxide. And this atmosphere is extremely dense, with over 90 times the pressure of Earth.. Strong winds rage here and sulfate rains fall. Because the atmosphere is so dense, the heat cannot escape.. The surface temperature of Venus is the highest of all the planets in the solar system: an average of 464 degrees Celsius.

In the early stages of the development of our system, when the Sun was less powerful, the climate of Venus could be more temperate, with lakes and oceans of liquid water.. Scientists are trying to understand how the nearest neighbor of the Earth turned into a " Since our planet and Venus are very similar, studying the evolution of the latter can show whether the Earth can turn into its counterpart..

But the lack of oxygen in Venus's atmosphere is a little baffling to scientists.. If oceans existed on the planet, water would evaporate into the atmosphere, where it would break up into hydrogen and oxygen.. After that, the hydrogen should have evaporated, and the oxygen should have remained..

Scientists sought to find out why this did not happen. They built a model that placed water oceans on the surface of Venus, added mechanisms that could contribute to the loss of oxygen, and adjusted parameters such as the amount of water and the time frame in which it could be present..

The model showed several possible options for the disappearance of oxygen. In one of them, it bonded with carbon emitted by volcanoes, forming carbon dioxide.. But this scenario was considered unlikely..

It is more likely that oxygen leaked into space or remained trapped in magma to form basalt..

The oceans that existed on Venus dried up about three billion years ago..

Scientists also managed to estimate the volumes of water that existed in the past of the planet.. It is likely that the depth of the oceans of Venus was no more than 300 meters, this is less than 10% of the depth of the oceans of the Earth.

That is, there is still a possibility that in the past there were oceans on the planet and potential conditions for life.. But this probability is very low..