The red shifts exhibited by galaxies can be explained by ____________.

0 votes
     an expanding universe
      expansion of the Milky Way
      Earths orbital velocityy
      calculation errors
      Keplers first laww
asked Jun 13, 2012 in Geography by anonymous
    

1 Answer

0 votes
an expanding universe
answered Jun 15, 2012 by Geodude ~Top Expert~ (9,680 points)



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