According to known observational data, there are over a trillion galaxies in the observable universe, and these galaxies are not isolated entities. Through
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After years of relentless exploration, we have now discovered over 5,000 planets located outside our solar system. These exoplanets vary in size and
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Classified by the size of their mass, black holes can be divided into three types: supermassive black holes, intermediate-mass black holes, and stellar-mass
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