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继火星之后,木卫二成为了许多科学家心目中除地球外,在太阳系里最适宜生命存在的星球。那木卫二究竟是一个什么样的星球呢?神秘的木卫二在1610年被意大利天文学家伽利略发现,被人们称为欧罗巴,它就像是木星的孩子,时刻围绕着木星转。欧罗巴是离木星第二近的卫星,所以人们也简称欧罗巴为木卫二。虽然离木星较近,但在木星的六个卫星中,它的“身高”和“体重”只能排第四,直径大约有3100公里,只比地球的卫星——月球稍微小一点。木卫二的“皮肤”较光滑,很少有超过几百米的起伏,想象一下,它会不会像只有草原和丘
Following Mars, Europa became the planet of many scientists in the world, the most suitable for existence in the solar system, in addition to Earth. What is Europa what kind of planet? Mysterious Europa was discovered in 1610 by the Italian astronomer Galileo, known as Europa, it is like a child of Jupiter, always revolving around Jupiter. Europa is the second closest satellite to Jupiter, so people are also referred to Europa as Europa. Although closer to Jupiter, its “height” and “weight” are only fourth in the six orbits of Jupiter, about 3,100 km in diameter, only slightly smaller than the Earth’s moon-moon a little. Europa’s “Skin” is smoother, with less than a few hundred meters of undulation, imagine that it will not be like grasslands and mounds