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Io's color is produced by the sulfur and molten silicate rocks on its surface. Io's volcanic activity is very frequent, keeping its unusual surface in a very youthful state. Jupiter's strong tidal gravitational pull stretches Europa and does a dampened oscillation, which is caused by Jupiter's other Galilean moon.
The resulting friction heats the interior of Io so much that it erupts lava to the surface. Io's volcanoes are so active that they effectively rotate this moon. Some of Io's volcanic lava glows red in the dark due to its blazing heat.
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Because he's closest to Jupiter, he's torn apart by Jupiter's strong gravitational pull, so he's most active.
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Ganymede, the largest natural satellite in the solar system, reaches 5,260 kilometers in diameter. It is much larger than Mercury and more than 1,500 kilometers smaller than the diameter of Mars.
Diameter: 5261km
The average track is 1.07 million kilometers.
Surface area: 87 million square kilometers of flat stockings.
Rotation time orange beat: synchronized with the revolution.
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Kibebe Hanseizo is the largest moon in the solar system. With a diameter of 5,262 kilometers, Ganymede becomes the largest moon in the solar system, larger than Mercury. It is composed of layers of ice and snow surrounding the old scattered nuclei of rocks.
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This is because Jupiter's volume, mass, etc. are the largest of the eight planets, and the most important thing is that its satellites are also the largest among the eight planets in the solar system, with a total of 63 moons discovered so far. Jupiter has a very large magnetic field, and Jupiter's relative position to its moons changes over time, like one"Small solar system"The same.
In recent years, expeditions to Jupiter have shown that Jupiter is releasing enormous energy into its cosmic space. It emits twice as much energy as it gets, suggesting that half of Jupiter's energy comes from its interior.
There is a heat source inside Jupiter. As we all know, the reason why the sun constantly emits a large amount of light and heat is because the nuclear fusion reaction is always going on inside the sun, and a large amount of energy is released during the nuclear fusion process. Jupiter is a huge liquid hydrogen planet, which already has incomparable natural nuclear fuel, and the central temperature of Jupiter has reached 280,000 K, which has the high temperature conditions required for thermonuclear reactions.
As for the high-pressure conditions required for thermonuclear reactions, Jupiter's rate of contraction and the accretion of energy and energy-carrying particles emitted by the Sun show that Jupiter's central pressure can reach the pressure level required for the initial nuclear reaction after billions of years of evolution. Once a large-scale thermonuclear reaction breaks out on Jupiter, Jupiter's atmosphere, moving in the form of a thousand strange vortices, will act as a "launcher" to release nuclear thermal energy. So, some scientists speculate that after a few billion years, Jupiter will change its identity, from a planet to a veritable star.
Jupiter is very similar to the Sun, but it doesn't burn like the Sun because it's too small. For Jupiter to become a star like the Sun, it would need to increase its mass by a factor of 100.
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Of course not, Jupiter has more than 60 moons, the first of the solar system.
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Upstairs seems to have misunderstood, the status of the Callisto and the Earth-Moon system should be the same, both are systems of satellites orbiting the planets, since the Earth-Moon system is the lowest celestial system, then the Callisto system makes sense, doesn't it?
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The Earth-Moon system is the lowest celestial system.
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Europa is the closest of Jupiter's four Galilean moons, reaching a diameter of 3,624 km and the diameter of the Moon is 3,476 km. In other words, Europa is about the same size as the Moon, but the environment on Europa is much harsher than that of the Moon, which can be described as a real hell on earth. It is known that the entire planet of Io is full of volcanoes, most of which are active volcanoes, and they are spewing magma all the time, which also makes Io's surface temperature very high.
As a result, Europa is known as one of the harshest moons in the solar system.
Judging from the satellite image, the surface of Io is full of devastation, not only the surface is pitted, but the whole satellite gives people an "unhealthy" color, which also makes people wonder, what did Io go through to become what it is today? According to exploration, Io's hot spots are as high as 2000K, and in this high temperature state, it is almost impossible for life to exist, and even human satellite probes are difficult to approach.
In addition, Europa's atmosphere is extremely thin, only one billionth of the Earth's atmospheric pressure, and its main components are sulfur dioxide, sodium monoxide, and trace amounts of oxygen. It is precisely because of this that Europa also causes this intense cosmic radiation, and even astronauts wearing spacesuits cannot stay here for a second. It can be seen that the environment of Europa is very harsh.
So, what caused Europa to become what it is today?
Scientists have found that the reason why Europa is like this is probably caused by Jupiter. In the early days of Jupiter's formation, Jupiter itself was an extremely hot planet, and Io was very close to Jupiter, so the water on Io was slowly evaporated. In addition, under Jupiter's super gravitational pull, Io's surface has become active, and volcanic eruptions have become commonplace.
Another reason is that Io is still in an active evolutionary stage, once it has passed the evolutionary period and reached a stable state, then Io will slowly fall silent, volcanic eruptions will stop, and many mountains will form on its surface, and one day, the environment of the wooden satellite will become similar to that of Mars, and maybe even become similar to Earth, after all, the Earth has evolved in this way.
Of course, this is all just speculation, and time will tell what Io will look like in the future.
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Europa is the closest of Jupiter's four moons, with a diameter of 3,624 km, about the size of the Moon. But Io's environment is much harsher than the Moon. The entire planet of Europa is full of volcanoes, most of them active, spewing magma all the time, and the surface temperature is very high.
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Because Io's natural environment is very harsh, and other planets in the solar system are much more docile than Io, Io is the most terrifying.
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NASA's colonization program targets Europa. Scientists believe it is possible to build a base on the surface of Europa that would fuel exploration deeper into the solar system.
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