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https://blog.wongcw.com/2019/07/11/nasa%e6%9c%80%e6%96%b0%e7%a0%94%e7%a9%b6%e8%ad%89%e5%af%a6%ef%bc%9a%e8%b6%85%e7%b4%9a%e9%bb%91%e6%b4%9e%e8%87%aa%e8%bd%89%e9%80%9f%e5%ba%a6%e6%8e%a5%e8%bf%91%e5%85%89%e9%80%9f/
NASA最新研究證實:超級黑洞自轉速度接近光速