????“????????”????

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

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