Chinanews client, Beijing, September 16th (Reporter Shangguanyun) From ancient times to the present, whenever people look up at the starry sky, they often cannot help but imagine: Does life exist on other planets in the universe?
Is it possible for humans to achieve "interstellar travel"?
A hot search a few days ago once again aroused people's attention on this topic.
According to reports, astronomers have detected phosphine in the atmosphere of Venus.
This gas is detected in the atmosphere of Venus, which means there may be life on Venus.
Is it really the truth?
How likely is the "migration to Venus" of human fantasy?
Possibility of "Phosphine"
The first question that needs to be clarified is what does it mean to detect phosphine in the atmosphere of Venus this time?
Data map: September 15 news, an artistic rendering of Venus released by the European Southern Observatory on the 14th, showing the phosphine molecule in the small picture.
Recently, astronomers have observed through telescopes that a gas called phosphine has been detected in the acidic clouds of Venus, thus speculating that Venus may have signs of life.
"In fact, before this, humans have found phosphine in the atmospheres of Jupiter and Saturn. However, in the atmospheres of Jupiter and Saturn, phosphine can exist stably for a long time. So there is phosphine on Jupiter and Saturn. It’s nothing strange.” said Wang Shuang, an associate professor at the School of Physics and Astronomy at Sun Yat-sen University and a well-known science writer.
He also said, but Venus is different.
The atmosphere of Venus is strongly acidic and chemically reacts with phosphine.
Therefore, the detection of phosphine in the atmosphere of Venus indicates that there is a mechanism on Venus that can continuously produce phosphine.
"Under normal circumstances, there are two ways to produce phosphine. One is natural phenomena, such as lightning and volcanic activity; the other is a biological mechanism, that is, the life activities of some anaerobic microorganisms can produce phosphine. Wang Shuang said, "The problem is that the amount of phosphine produced by natural phenomena is very limited.
In other words, using natural phenomena, it is difficult to explain why there is a large amount of phosphine in the atmosphere of Venus.
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Therefore, some people have speculated that there will be some anaerobic microorganisms in the atmosphere of Venus?
Wang Shuang believes that this is only a theoretical possibility, and it is far from confirming the existence of life on Venus.
Even if life really exists, it is just some alien microbes, and there is no way for aliens to talk about it.
But the findings of this study still have important scientific significance.
Wang Shuang said, "Why does phosphine continue to be produced in the atmosphere of Venus? What is the reason behind it? This is scientifically worth exploring."
How likely is it to move to Venus
It is worth noting that many people are so excited when they hear that phosphine has been detected in the atmosphere of Venus, largely because there is a romantic imagination in their hearts: Will there be aliens on Venus?
Can you travel to Venus in the future?
Data map: On March 28, Beijing, the weather was fine and fine. After the sun set, the astronomical landscape of "Venus and Moon" in the sky was clearly visible.
Photo by China News Agency reporter Sun Zifa
This imagination is not completely illusory.
It is mentioned in the popular science work "Universal Odyssey: A Walk through the Solar System" that Venus has been regarded as the sister planet of the Earth for a long time because they do have many similarities.
For example, the volume of Venus is about 85.5% of the earth's volume, while the mass of Venus is about 81.5% of the earth's mass; in other words, the size and mass of the two are almost the same.
Therefore, many people have imagined that one day humans may emigrate to Venus.
The ideal is full, but the reality is very skinny.
The environment of the real Venus is more like a terrifying "hell".
Horrible Venus environment
In ancient times, Venus had several names. When it appeared in the eastern sky at dawn, it was called "Venus", and it appeared in the west of the sky in the evening and was called "Chang Gung Star."
However, the environment of Venus, which looks so bright and beautiful, is extremely bad.
Data map: Previously, the astronomical phenomenon of "Venus Transit" was photographed in Nanning, Guangxi. The orange sun seemed to have been spotted with a "beauty mole".
Photo by Hong Jianpeng issued by China News Service
Wang Shuang introduced that humans have launched probes to Venus many times to understand the harsh environment of Venus like hell.
Venus has three worst conditions.
The first is high temperature.
The average temperature on the surface of Venus is about 460℃, which is higher than that of Mercury.
Landing on Venus is equivalent to entering a burning oil pan.
The second is high pressure. The atmospheric pressure on the surface of Venus is about 92 times that of the earth. To make a simple analogy, this is equivalent to pressing a tank on a person.
Then there is terrible acid rain.
From time to time there will be a huge rain of sulfuric acid on Venus. It is really concentrated sulfuric acid that can disfigure people.
Wang Shuang said that the culprit that turned Venus into this hell look is the "greenhouse effect."
In the atmosphere of Venus, the content of carbon dioxide is as high as 96%.
The content of this greenhouse gas is so high that the "greenhouse effect" is completely out of control on Venus, creating the current terrifying environment of high temperature, high pressure and strong corrosion.
In fact, whether you move to other planets or interstellar travel, right now, this is only a good wish of people.
More attention should be paid to protecting the earth and protecting people’s current homes.
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