https://blog.wongcw.com/2020/04/01/nasa%e5%b7%b2%e5%ae%8c%e6%88%90%e7%81%ab%e6%98%9f%e7%9b%b4%e5%8d%87%e6%a9%9f%e7%9a%84%e6%9c%80%e7%b5%82%e6%b8%ac%e8%a9%a6%e9%a0%90%e8%a8%88%e6%98%8e%e5%b9%b4%e7%99%bc%e5%b0%84%e5%8d%87%e7%a9%ba/
NASA已完成火星直升機的最終測試預計明年發射升空