So perhaps the extraordinary distances aren't such a problem for these tiny space travellers.

因此，对于这些微小的太空旅行者来说，非凡的距离或许不是问题。

The traveller heading off into space would describe a gigantic circle and eventually come back to where he started from: another space traveller, starting from the farthest point on the first astronaut's orbit, would define another, more distant circle.

前往太空的旅行者会描述一个巨大的圆圈，并最终回到他出发的地方：另一个太空旅行者从第一个宇航员轨道上最远的点开始，将定义另一个更远的圆圈。