Assuming that there are presently (and possibly optimistically) about a million technological civilizations within the Milky Way, what would be the average distance between them?

0 votes
     about 5 kpc, or 15,000 light-years
      about 50 kpc, or 150,000 light-years
      about 500 kpc, or 1.5 million light-years
      about 500 pc, or 1500 light-years
      about 50 pc, or 150 light-years
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

0 votes
about 50 pc, or 150 light-years
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)

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