https://blog.wongcw.com/2019/02/19/%e7%a9%80%e7%a5%9e%e6%98%9f%e8%bf%91%e5%9c%b0%e8%a1%a8%e6%b0%b4%e6%88%96%e5%ad%98%e5%9c%a8%e8%bf%91%e5%8d%83%e8%90%ac%e5%b9%b4/
穀神星近地表水或存在近千萬年