https://blog.wongcw.com/2021/10/09/%e9%9b%99%e6%98%9f%e7%b3%bb%e4%bd%bf%e5%a4%a9%e6%96%87%e5%ad%b8%e5%ae%b6%e6%84%9f%e5%88%b0%e5%9b%b0%e6%83%91%ef%bc%9a%e6%88%91%e5%80%91%e7%9c%9f%e7%9a%84%e8%a2%ab%e9%9b%a3%e4%bd%8f%e4%ba%86/
"雙"星系使天文學家感到困惑:"我們真的被難住了"