????????“????”????

????:????????????:??????????

??????????6???5?? ????5????,?“????”??,??

?????????(NASA)???????,“????????”??????????????5????10????52?“????????5”?,??????????????????????????????????????????15???????????,????????????

“?”?????????????????????25????????????,6????12????????15????????,???????“?????????”?????

5?????????????????????6?,“?”???????????????“?5”?????????????,??????????6?1?,“??????”??????3?50??,???????????

???2011?????????????????,??????????(SpaceX)2014???????NASA??,????“?”??????????????“??”???,NASA??

??????????,????2017????,?????????????,“?????????????”?;?“???”?,?????10??????????(?????????????) ?????:??