And Orion is really one of the only, if not the only, off-the-shelf technologies that could do something.  So I'm going to tell you the good news and the bad news.
猎户座计划即使不是唯一的，也是现成的技术。 猎户座计划即使不是唯一的，也是现成的技术。 所以我要告诉大家一个好消息和一个坏消息。