???????????????????

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

????????????????????“?????”?????????,??????????????????(NASA)?????????????????12???????????????????17?,??3???????????,NASA????,???2???(SpaceX)??“???”?????????

?????????,NASA???2??,?,?????????????????????????SpaceX???,??????3?????

?,?,NASA??SpaceX????,???????????

?????????????????,??6???????6???????,?????????????“?”??????????,???6??14????,????,??????????????????8????,NASA??????????,??“??”????????????2?????????(SpaceX)?????“??”????(??????????????? ???????????????????????????????????)

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