2 Answers

JPNagarajan · Answer 1 · 2018-02-13T11:20:45+0000

The distance between exo-planets and planet earth is measured in Light years, all other units are quite small, so they are inconvenient.

Gui · Answer 2 · 2018-02-18T09:46:00+0000

Light years? Since I believe that light years are the most common measurement in space i imagine that would be correct

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