到目前为止，还没有人到达比月球更远的地方，但是无人驾驶宇宙飞船已经到达宇宙的其他地方。
So far, no man has traveled farther than the moon, but spaceships without people have reached other parts of the universe.
他们说，在本世纪末之前，无人驾驶的宇宙飞船就能到达那里，让今天活着的人们及时看到它。
They say it could be reached by an unmanned spaceship before the end of the century in time for people alive today to see it.
在未来的几十年当中，无人驾驶的宇宙飞船将登陆月球，并以“就地取材”的方式对月球资源的开发利用进行试验(ISRU)。
Within the coming decades, unmanned spacecraft will land on the Moon and begin experiments with in-situ resource utilization (ISRU).
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