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。
2023-37
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.
An astronaut or cosmonaut is a person trained by a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Although generally reserved for professional space travelers, the terms are sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists.