?? NASA????NASA?? ???????????????
![](https://image.chezhanri.com/2019/0505/20190505140033301.jpg)
????:1????????:??????
2????????
3??????????????
4???????
5??????????????
??7????1??????????
???:?????????(NASA)?????????????????????????????????(Faith Mckie)6??28????????,???????????,????????????????NASA??????????,?????NASA???????
?????,?????,???????????“?????????????????”????????????????????,???????????????????????????(????? ??????????)
?????????:????????????????????