There are eight planets in the solar system, among which the earth is a beautiful planet of life, and it is also the home for human survival. After human beings walked out of the earth, they have been committed to the great cause of looking for extraterrestrial life. But in recent decades, we still have not found any extraterrestrial life and extraterrestrial civilization.
Although scientists have not found any extraterrestrial life in space, they firmly believe in the existence of extraterrestrial life. Moreover, with the continuous progress of science and technology, people’s understanding of the universe is also constantly strengthened, their understanding of life is also increasing, and the pace of exploring extraterrestrial life is also accelerating.
The first goal for scientists to search for extraterrestrial life is in the solar system. Although scientists believe that it is easier to find extraterrestrial life and even extraterrestrial civilization outside the solar system, human science and technology are far from being able to carry out interstellar navigation. Therefore, the main goal of searching for extraterrestrial life can only be in the solar system.
Among the eight major planets in the solar system, Mars is the one with the highest expectation. According to the exploration of Mars in recent decades, it has been basically determined that Mars in ancient times was also a planet with water, atmosphere and magnetic field. It’s just that I don’t know why it happened. Even so, there may still be life on Mars.
In addition to the life exploration on Mars, scientists have also focused on several moons of Jupiter and Saturn. These moons are covered with a large amount of ice, and there may be a large amount of liquid water under the ice sheet, which may lead to the existence of life. Among them, Europa is the most likely satellite for life.
Europa is the sixth known moon of Jupiter and the fourth largest moon of Jupiter. It was discovered by Galileo in 1610. Its mass and volume are similar to that of the earth’s moon. It’s a mild world with ice on the surface and an ocean at the bottom. Scientists believe that the earth’s oceans give birth to life, and Europa, which has a similar environment to the earth, may also give birth to life. Therefore, Europa’s underwater ocean has become one of the targets for scientists to search for extraterrestrial life.
In order to explore Europa, scientists launched the Galileo probe. After reaching the orbit of Europa, the probe flew over Europa twice and took clear pictures of the satellite at close range. Through these photos, scientists have a better understanding of Europa. There are few craters on Europa. Only three craters with a diameter of more than 5 km have been found. It shows that it has a young and active surface.
Europa’s most striking appearance is a string of cross stripes all over the world. The larger one diffuses outward into the zone of light matter, nearly 20 kilometers long. The latest theory of their origin is that they are produced by a series of volcanic eruptions or fountains. According to the latest research on Jupiter, the characteristics of Europa’s surface are probably related to Jupiter’s strong magnetic field.
Scientists have found that Jupiter has a very strong magnetic field, which is strong enough to affect the satellites around it. And Europa’s underground ocean is probably salty, if so, then the strong magnetic field will have a very obvious impact on the Aral Sea, which will form a jet stream in the ocean. By simulating the environment of Jupiter and Enceladus in the laboratory, scientists have found evidence that Jupiter’s magnetic field causes jet current in Europa’s underground ocean, and published the results in natural astronomy.
The researchers created a numerical simulation. The simulation shows that Jupiter’s magnetic field affects the flow of the ocean beneath Europa’s ice. This flow will cause pressure on the surface of Europa and occasionally cracks, which can explain the surface cracks observed by other researchers on Europa. It’s possible that’s how these cracks came about.
Researchers believe that the jet stream on Europa can be compared to the Gulf Stream on earth. It is worth noting that the earth’s jet is moving through the oceans, forming compounds that are important to life. If life exists on Europa, its rapids can do the same. Through the direct numerical simulation of the interior of Europa, it is found that Jupiter’s magnetic field produces a retrograde ocean jet at the equator, which may affect the global dynamics of Europa’s ocean and promote the formation of some surface features of Europa’s ice shell by exerting a unidirectional torque on it.
Through this simulation experiment of scientists, we have a new understanding of the strange features of Europa’s surface, and also let scientists have a higher expectation of the possible existence of life on Jupiter II. It is difficult for a dead star not moving to form life. However, through various observations and studies, Europa is a living planet with obvious movement.
Of course, if you want to explore the life that may exist in Europa’s underwater ocean, you can’t rely on the orbital probe. You can only find out if you go further and land on Europa, or even directly penetrate the thick ice into the ocean. NASA plans to launch a new probe to Europa in 2025. The probe may choose to land on Europa to collect samples at close range.
Because there are often jets at the poles of Europa, that is, the material under the ice comes to the surface through the eruption of water. If there is life in the ocean under the ice, the water and other materials so erupted may have significant discoveries.
Of course, to really explore and discover the life that Europa might exist, we still need to penetrate the ice into the ocean. However, this task is very difficult. We should know that the thickness of Europa’s ice layer may reach tens of kilometers. It is impossible to drill through such a thick ice layer through the detector with the current human technology. However, scientists’ mission to explore Europa’s life has been in mind for decades. They have conceived an ice piercing robot that can penetrate the thick ice layer of Europa and reach the ocean.
If this kind of robot can be realized in the future, once it reaches the underwater ocean of Europa, the mystery of Europa’s life will also be solved. We should be looking forward to some important discoveries at that time. It is possible that there are not only some simple life in Europa’s underwater ocean, but also relatively complex marine life, even more complex than that of the earth’s marine life. You know, the depth of Europa’s underwater ocean is far greater than that of the earth’s ocean, and its ocean volume is far greater than that of the earth.
If scientists find life in Europa’s oceans in the future, it is possible that life will also exist on Jupiter and Saturn’s other moons that have subglacial oceans. Now we have not found any extraterrestrial life. It is possible that with the continuous progress of science and technology, we will find that life is universal in the universe, and the solar system may be full of life.
However, although life may be universal in the universe, intelligent life like human beings may be relatively rare. At least there is only one intelligent civilization in the solar system. In other galaxies outside the solar system, although there may be living planets, intelligent life will be very rare. It is possible that there is only human civilization within tens of thousands of light years. This may be one of the reasons why we can not find any extraterrestrial civilization, and there is no connection between extraterrestrial civilization and human beings.
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