Current version

This is the accepted version.
added by smyru March 18, 2017, 10:33 a.m.
reach: rather globalastronomyplanetsSolar Systemtechnology

Votes

+1 Very interesting!  globalquiz.org
-1 Incorrect or questionable  yoshchim
      Acceptable  Norman S Passanha
      Acceptable  Edis Kuko
+1 Very interesting!  Sandesh Sumnath
+1 Very interesting!  Anne Schoot