????????“????”????

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

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