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Is there water on Venus that contains phosphine gas as a sign of life? Scientists answered

Last year, Venus was long considered a dead planet with phosphine gas in its atmosphere that could be evidence of life. New missions from NASA and ESA to Earth’s “evil twin” will soon reveal its habitability and geological activity. Whether there is water on the now completely dry surface of Venus remains a mystery. The answer came from new Swiss scientists on the subject. Experts made comparisons by simulating the climates of Venus and Earth.

Venus is an Earth-like terrestrial planet. However, it has a surface temperature of around 464 degrees and a pressure 92 times that of Earth.
However, the earth has had oceans on its surface for about 4 billion years. It is believed that lakes and rivers existed on Mars about 3.5 billion years ago.
A new study in Switzerland has shown that this is unlikely for the closest neighbor of the earth. A team of scientists led by the University of Geneva and the National Center for Competence in Research (NCCR) PlanetS has created a climate model to simulate the conditions on the young Venus.
The study found that the temperature of Venus’ atmosphere was never enough to condense water, fall rain, and form oceans.
“We simulated the climate of Earth and Venus more than four billion years ago. By that time, the surface had melted when both planets were just being born,” said Martin Turbet, co-author of the study, which was published in the journal Nature . That means it could be in the form of vapor on the planet as it is. “
Researchers to find liquid water on Venus; As on earth, water must condense and fall as rain over a period of several thousand years. However, Turbet pointed out that the very high temperatures on Venus would never have allowed this to happen.
The scientists also explained that while the sun is 30 percent darker than it is today, that would not be enough to bring the temperature of Venus down to a point where oceans can form.
Turbet said: “Such a drop in temperature would only be possible if the surface of Venus were protected from solar radiation by clouds. But our model shows that clouds form on the night side of the planet where they cannot mask the sun. This in turn caused the greenhouse effect and helped maintain the high temperatures on Venus. “Instead, water remained a gas in the atmosphere and oceans never formed.”
On the other hand, a team of researchers from Cardiff University reported last September that they discovered traces of phosphine gas in the acidic clouds of Venus. Phosphine is often released on Earth by microorganisms that do not use oxygen to breathe, which prompted researchers to investigate whether Venus could be harboring life at the time.
The study, published in the September issue of Nature Astronomy, was hailed as one of the greatest scientific discoveries of 2020 and sparked great controversy.
Then the American space and aviation authority (NASA) announced that it had sent two new space probes to Venus to study the atmosphere and geological properties of the planet. The missions, each allocated $ 500 million (approximately 4 billion 600 million Turkish liras), will begin between 2028 and 2030. Just a week after NASA’s announcement, the European Space Agency announced it would send a probe called EnVision to study Venus in the early 2030s.
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