????“????????”????

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

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