美国国家航空航天局(NASA),在周四即将使用美国私营公司最大的助推器(德而它斯重型火箭发动机),将把“猎户号深空探测器”太空舱发送距离地球3600英里处。
NASA , for example , is using the biggest booster in the U.S. fleet , a Delta 4 Heavy , to shoot its Orion deep-space capsule as far as 3600 miles from Earth during a test flight scheduled for Thursday .