Titan has a thick atmosphere and a liquid ocean, but it scares scientists

With the help of science and technology, when human beings go out of the earth and see the vast universe, a question appears in our mind, that is, does extraterrestrial life exist? In many people’s cognition, the earth is unlikely to be the only living planet in such a vast universe, and the existence of extraterrestrial life is a high probability event.

Although most people believe that extraterrestrial life exists, before we really find it, all we can do is guess. Therefore, not long after human beings stepped out of the earth, we began the exploration plan of extraterrestrial life. The first target planet for human beings to explore is the moon, the earth’s satellite.

When Apollo 11 landed on the moon, we saw a desolate world full of craters. Since the moon has no atmosphere and no ecological environment of its own, it is basically impossible for the moon to have life. So the possibility of life on the moon is basically zero. After exploring the moon, scientists began to explore Venus, the sister planet of the earth.

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Venus is not only the neighbor of the earth, but also the nearest planet to the earth. In terms of mass, volume and structure, Venus is very similar to the earth. Scientists also call them sister planets. Scientists speculate that Venus, which is so similar to the earth, is also in the habitable zone, which may bring us some good news.

Unfortunately, when the probe reaches the orbit of Venus, what we see is a purgatory planet. Although Venus has a very thick atmosphere, 95% of the atmosphere is made up of carbon dioxide. As a result, the greenhouse effect of Venus is very serious, and the surface temperature can reach 460 ℃. There is also a layer of acid rain, which comes from time to time.

In such a bad Venus environment, the possibility of life on it is also very small. So the goal of scientists to explore life turned to Mars, another neighbor of the earth. Although Mars is also very desolate, compared with Venus, it is already a paradise like environment.

Scientists have very high expectations for the existence of life on Mars. Especially after billions of years of observation, more and more evidence shows that Mars was once a beautiful planet, and life may have existed. Although it has become desolate now, it still has the possibility of life on Mars due to its innate advantages, and Mars is also a new home for human beings planned by scientists.

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Venus, earth and Mars are the three planets in the habitable zone of the solar system. If Venus and Mars do not have extraterrestrial life, is it unlikely that there will be life on the planets outside the habitable zone? In the past, due to the lack of human understanding of life and the universe, it was believed that only the habitable zone could produce life, because only the surface of the planet in the habitable zone could have liquid water.

Once out of the habitable zone, even if there is water on the surface of the planet, it only exists in the form of ice. Although in the scientist’s plan, the planets in the habitable zone are more likely to have life, we have not given up exploring the planets outside the habitable zone. The moons of Jupiter and Mars are the focus of our exploration.

As we all know, Jupiter and Saturn are gas giant planets, and they are surrounded by many satellites. Many of these satellites are a world of ice. There are a lot of solid ice on the surface. Scientists speculate that there may be liquid ocean under the thick ice. So is there a liquid ocean on the surface of these satellites?

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It may be said that the temperature of planets in the orbits of Jupiter and Saturn is relatively low, and there is no liquid ocean on the surface. But the universe is so magical that the more impossible things are, the more likely they are. When scientists set their goal on Titan, they saw a scene that made people happy but afraid.

Titan, also known as Titan, is a satellite orbiting Saturn. It is the largest of Saturn’s moons and the second largest in the solar system. Although it is only a satellite, it is an extraordinary satellite. Ganymede is the only satellite in the solar system with a thick atmosphere. We should know that the thick atmosphere means that its surface may have its own ecosystem, which is the innate condition for the birth of life.

So when scientists observed Titan, they were very excited that there might be extraterrestrial life on this planet. What’s more, after further exploration, scientists have damaged the liquid ocean on the surface of Titan. As we said earlier, the surface temperature of Saturn is very low. How can there be a liquid ocean at low temperature?

It’s incredible, but it’s true. The probe can clearly see lakes and liquid oceans on Titan’s surface, but the liquid material that makes up the ocean is not water, but methane as we all know it. Methane is a natural gas that we often use in our daily life.

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The liquid methane we use in our daily life needs to be compressed to form, but on Titan, due to its ultra-low temperature, it forms a natural liquid ocean. This kind of situation makes scientists feel scared. You know, methane water is very terrible. For human beings, we can’t get close to it at all.

The buoyancy of liquid methane is very small. For example, when we swim on the sea, we can easily float up, but on Titan, even if we use some floating devices, we will immediately sink into the bottom of the sea. So, although we found a planet with a thick atmosphere and a liquid ocean, such a planet is a forbidden area for human beings.

Is there life on the surface of Titan? Scientists think that the possibility is very high. We should know that methane is also an organic matter, which is also rich in carbon, and life on earth is carbon based life. If there is life on the surface of Titan, such life, in essence, should be the same as life on earth, which is carbon based.

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However, even if they are carbon based life, their life forms will be very different. If there is life on Titan, the material they rely on for survival may be rich methane. This life form may be beyond our part of cognition.

Of course, whether there is life on Titan is still speculation. We have no ability to actually land on the surface of Titan. Although Titan is not a purgatory planet like Venus, it may be no less difficult to detect it than Venus. In particular, it may be more difficult to detect the ocean of liquid methane on Titan’s surface.

If life exists on Titan’s surface, its rich liquid ocean may be the main place to live. Only when we go deep into the methane ocean can we find some special life. Of course, for humans, we expect life on Titan, and we don’t expect life. You know, methane is a good source of energy. The reserves of methane on earth are limited.

If we can transport the liquid methane from Titan back to earth, it will be great good news for human beings. The abundant methane resources on Titan can meet the needs of human beings for a very long time. But if there is special life in Titan’s methane ocean, it will be more difficult for us to exploit methane resources in the future.

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