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Europa, Voyager and Galileo explored the moon in 1980 and 1995, respectively. In 1979, the Voyager discovered that its surface was covered with craters, and tens of thousands of ravine-like stripes could be faintly seen. In 1995, after Galileo Galilei made a closer approach, scientists concluded that the fissures above Europa's thick ice were similar to the movement of Earth's Antarctic ice sheets.
In addition, Europa's numerous "crosshairs" have created a scene similar to the diffusion of material from volcanic activity, and the most recent theory of their origin is that they are produced by a series of volcanic ejections or fountains.
1. There should be a liquid ocean beneath Europa, and only a large area of glaciers above this ocean can form fracture streaks that span hundreds of kilometers. In fact, after Galileo's exploration, scientists generally believe that the existence of a liquid ocean beneath Europa's surface is not low.
2. Europa has a stable heat source that can continue to provide address activity on Europa's surface, such as supporting the melting of ice on Europa's surface and the alteration of the original geological landscape after the water level rises (as evidenced by Galileo's discovery that Europa has very few ancient craters on the surface of Europa, and new surface forms are constantly forming), as well as the presence of volcanoes and fountains (the cross-streaked above).
The reason is that Europa is too close to Jupiter, and its inner core is constantly rubbing under the influence of Jupiter's gravity to produce heat energy. <>
Magnetic data collected by the Galileo spacecraft, which orbited Jupiter between 1995 and 2003, suggests that Europa is capable of generating an induced magnetic field of its own under the influence of Jupiter's magnetic field, suggesting that there is likely a conductive layer similar to that of a saltwater ocean within its surface, and that Europa may also have a metallic iron core.
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Maybe it's because the microorganisms can be destroyed, but the other viruses can't.
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In many extreme environments on the earth, it is also unbelievable that there are some extreme environment microorganisms. We must not underestimate the ability of these Earth-based microbes to adapt to the Martian environment.
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Mars is a large natural body that is far more capable of regulating than these microbes.
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Because we humans want to move to Europa, we care more about Europa.
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Because microbes can't survive on Mars at all, but on Europa it's a bit of a problem.
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Because microbes simply can't survive on Mars, we care more about Europa.
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Because Mars is not suitable for human habitation, humans are not worried about whether it will pollute or not.
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Because Mars is a natural celestial body, its own ability is still very powerful.
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Because this satellite has a great danger and will cause great harm to the earth.
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Because humans think it's going to have a more serious impact, don't you think?
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The conditions of Mars may not be suitable for the existence of life in various aspects, and Europa has been scientifically proven to be the possibility of life, and the reason why Europa has signs of life is because Europa has some of the necessary conditions for the existence of life on the planet.
As we all know, after scientific research, although there may be liquid water on Mars, it is not suitable for life in other aspects, such as atmospheric conditions, good temperature conditions, and geological tectonic conditions. Therefore, if the microbial contamination of Mars really happens, scientists will not be too worried about it, on the contrary, if it pollutes the planet Europa, it may cause scientists to pay great attention to it.
According to the relevant data, Europa is a planet with abundant water resources, and the surface of Europa is a very ice layer, which contains dust and gravel such materials, and the thickness of the ice containing such substances is even hundreds of kilometers thick. In this huge ocean world covered with dust and gravel, and with a depth of hundreds of kilometers at the bottom, scientists agree that there should be some species similar to those of the earth's marine life that we rely on, so this important scientific discovery provides theoretical support for the existence of life on Europa, a celestial planet.
From the above examples and data, we can clearly understand that Europa, a celestial planet, is highly likely to have life, while Mars is unlikely to have any existence. Of course, this does not mean that we have an ecological environment for Mars.
We have to do our best to maintain the development of every planet where life may exist, and we don't want to see Mars contaminated with microbes, and we certainly don't want to see Europa contaminated. As a celestial planet in the solar system, we must do everything we can to protect other planets that have life, just as we protect our home on Earth.
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Because people have detected that the environment on Enceladus may be suitable for living organisms, scientists are more afraid of polluting Europa.
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It may be that the environments on these two planets are very different, so humans are not afraid of microbial contamination of Mars but of Europa.
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Because Mars is not suitable for human life, and Europa's environment is very similar to Earth's, it may be used as a target for humans to move rocks in the future, so humans are afraid of defiling Europa.
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