View Single Post
  #4  
Old 31-08-2012, 01:16 PM
bojan's Avatar
bojan
amateur

bojan is offline
 
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,109
Yes, distance..
And there may be other factors involved which are not the part of Drake's equation.

Try and google for the following:
"Fermi paradox"
"GRB extinction"
"GRB extinction Curcic"
Reply With Quote