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太阳巨洞之谜：六十个地球那么大！
科学家们最近发现，太阳上出现了一个巨大的神秘黑洞，它的规模之大，足有六十个地球那么宽广！这个黑洞不是一直都在那里，而是像捉迷藏一样，突然就冒了出来。
壮丽宇宙探秘62/275
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