[問卦] 太陽系有第九行星嗎?
如題,文組魯蛇小弟我,想請問一下版上精通天文的大家,
太陽系眾所皆知目前是八大行星,而且我們目前在柯伊伯帶也只有找到矮行星,
那麼是否有可能還存在我們觀測不到的第九行星呢?
如果有的話,這第九行星是如何組成才一直沒被我們觀測到呢?
請問大家有掛嗎?
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