https://blog.wongcw.com/2022/02/14/galaxy-zoo%e9%a0%85%e7%9b%ae%e9%80%9a%e9%81%8e%e5%93%88%e5%8b%83%e7%99%bc%e7%8f%be%e4%ba%86%e4%b8%80%e5%80%8b%e4%b8%89%e9%87%8d%e6%98%9f%e7%b3%bb%e5%90%88%e4%bd%b5/