However, the Shuttle program illustrates the dangers, both financial and programmatic, of making humans the central feature of our outer space endeavors.
不过，航天飞机项目的前世今生也说明了，把人置于太空探索的中心无论从资金上还是从项目进度上都是有危险的。
With competition from other companies, that price could soon drop low enough for daily shuttle service to outer space, the moon and asteroids8 for tourism, mining and science.
随着其他公司加入竞争，这一价格可能很快就会下跌，到时候航天飞机每天都能发航班去外太空、月球和小行星，人们可以去旅游、采矿、搞科研。
Pilot your space shuttle and reach extreme speeds in outer space.
试点的航天飞机和外空达到极高的速度。
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