Over sine they were discovered in 1962 quasars have intrigued astronomer for being the size of solar systems, but brighter than a hundred galaxies.
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释义
自1962年发现类星体以来,天文学家就一直对太阳系究竟有多大?类星体为什么比许多银河还明亮?等问题很感兴趣。
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