Ganymede has water, oxygen and magnetic field. Why is there no life? The secret could be in a huge ocean

Since the exploration of the universe, human beings have been looking for the existence of extraterrestrial life, but decades later, we still have not found any extraterrestrial life. Is there only life on the earth in the universe? If we think so, it’s no different from a frog in a well.

The universe is vast and vast, with countless galaxies and stars. Galaxies like the solar system are only one of the tens of millions of galaxies in the Milky way. For planets like the earth, there are also countless galaxies in the Milky way. Therefore, scientists have always firmly believed that there must be extraterrestrial life in the universe and the existence of extraterrestrial culture. However, the current science and technology of human beings is still too backward, and we can only use the solar system as a small galaxy If human beings have the ability to walk out of the solar system, they may find a large number of extraterrestrial life.

With our current human science and technology, we can only explore some life in the solar system. In the past decades, human beings have launched many explorers. However, the surface environment of the planets in the solar system is not very good except the earth. The possibility of birth of life is very small. Although there is no life found on the surface of the other seven planets in the solar system except the earth, there is no life in the wood However, some unusual phenomena have been found on several satellites of the star, one of which is of the greatest interest to scientists, and it is also the planet most likely to have life.

This moon is Ganymede. As we know, Jupiter is the first of the eight planets in the solar system. Its volume and mass are larger than the other seven planets combined, and its size is 1300 times that of the earth. And it has the largest number of moons, reaching 79. Four of them are natural moons of Jupiter at the beginning of its formation. The other moons were captured by Jupiter later.

Among the moons of Ganymede, Jupiter III is the largest of all the moons in the solar system. It is bigger than mercury, with a diameter of 2562 kilometers. It takes seven days to circle Jupiter. Ganymede is mainly composed of silicate rock and ice body, but the inner star has obvious stratification, and its core has a flowing iron rich core. Therefore, it is the only known satellite in the solar system with a magnetosphere. Moreover, Ganymede has a thin atmosphere on its surface, which is mainly composed of oxygen.

Many people may think that there should be life on the surface of Ganymede when they see the situation of Ganymede. In fact, there is no life on the surface of Benjy. One reason is that there is no liquid water on its surface, but there is frozen water. The other reason is that although it has an atmosphere above, it is very thin, and the surface pressure is less than ten thousand of the earth’s atmospheric pressure One third and the last reason is that the surface of Ganymede is too cold. The average temperature is about – 160 degrees below zero. It is difficult for life to survive in such an environment.

So does Ganymede really have no possibility of life? Of course not. Although there is no life on the surface of Ganymede, it does not mean that there is no life inside Ganymede. In March 2010, NASA announced that there is a sea of salt water under the ice cap of Ganymede, the largest satellite in the solar system, with a liquid water content higher than that of the earth. With such a huge amount of liquid water, there is a great possibility of life in it. It is the source of life, not to mention such a huge amount of liquid water.

If Ganymede is able to explore the liquid ocean inside Ganymede and discover the existence of life in the future with advanced space technology, it may change some cognition of human beings in exploring extraterrestrial life. Although the surface environment of many planets is bad and life can not survive, the environment inside the planet may be very comfortable and suitable for life To survive, to give birth to life.

Let’s take our earth as an example. The earth is a planet rich in species. Most of life lives on the earth’s surface, but human beings know very little about what’s inside the earth. We can go to astronomical telescopes to observe galaxies and stars hundreds of light-years away, but now we have no more advanced means to detect the real situation inside the earth It is still a mystery to us whether the Ministry has another space and whether there is advanced life.

With the continuous progress of human science and technology, in the future, human beings are bound to move towards a real interstellar civilization. At that time, human detection means will be more advanced. We can not only detect the surface of the planet, but also explore the interior of the planet. At that time, we may find that the solar system is not as good as the original idea that there is no extraterrestrial life except the earth The traces of life are likely to spread throughout the solar system.

When human beings have the ability to leave the solar system and explore more distant galaxies, they will also find more living planets, other alien civilizations, various intelligent civilizations in the universe, and different kinds of creatures, which we now think are impossible, may be found in the universe in the future, or the number of Civilizations in the universe will far exceed In our imagination, the number of human beings is too small in the eyes of some advanced civilizations. We think that the global population of 7 billion is already very large, but in the era of interstellar civilization, maybe 700 billion people are not enough.

Guys, do you think there will be life in the ocean beneath Ganymede? Welcome to comment below to discuss and express your opinion.

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