????“????”????????

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

????????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??(????????) ??????????????????????:????