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【宇宙杂谈】轨道上的神秘天体：特洛伊小行星
行星的轨道上一定就没有其他天体了吗？按照我们通常的理解，太阳系这些大行星轨道上肯定是干干净净。其实不然，就拿最具代表性的木星来说，它的轨道上其实就一直有大量的小行星存在……
【宇宙杂谈】31/114
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