????:1?????????:??????????

2???????95??98

3????????

4?????????

5?????????????

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