[討論] 火星上曾經有生命嗎?
我家裡有一本天文的書寫到
太陽剛形成時體積比較大
後來慢慢縮小成現在大小
不過我google不到相關資訊
太陽大小變化?
我突然想到
火星表面有河川流過的痕跡
有沒有可能火星曾處在適應區
曾發展過高等生命 只是現在搬走了?
都過這麼多億年了 有可能嗎?
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