?? NASA???????????????NASA???? ??
![](https://image.chezhanri.com/2019/1209/306f9c3d6dffcf7e666b9cdae232d6d9.jpg)
????:1???????????:?????????????
2???????
3?????
4?????????
5????????????
?????7?????1??? (??????? ??)?????7?1??????????
????????:??(NASA)?????????????????????????????????(Faith Mckie)28?,???????????????????????????????,???NASA?????????????????????,????????????????????NASA???????
??????????????????????????:?????????,???????????????“??”?????,??????????(???)
??:?????????????????