▁after ▁obser ving ▁that ▁our ▁galax y ▁and ▁a ▁sister ▁galax y ▁( the ▁Second ▁Gal axy ) ▁are ▁passing ▁through ▁each ▁other . ▁This ▁will ▁result ▁in ▁the ▁formation ▁of ▁bill ions ▁of ▁plan ets ▁and ▁the ▁development ▁of ▁life ▁upon ▁some ▁of ▁them . ▁Domin ance ▁over ▁these ▁life ▁forms ▁would ▁offer ▁the ▁Edd ori ans ▁an ▁opportunity ▁to ▁satisfy ▁their ▁l ust ▁for ▁power ▁and ▁control . ▁ ▁Although ▁the ▁Edd ori ans ▁have ▁developed ▁mental ▁powers ▁almost ▁equal ▁to ▁those ▁of ▁the ▁Ar is ians , ▁they ▁rely ▁instead ▁for ▁the ▁most ▁part ▁on ▁physical ▁power , ▁which ▁came ▁to ▁be ▁exerc ised ▁on ▁their ▁beh alf ▁by ▁a ▁hierarchy ▁of ▁under ling ▁races . ▁They ▁see ▁the ▁many ▁races ▁in ▁the ▁universe , ▁with ▁which ▁the ▁Ar is ians ▁were ▁int ending ▁to ▁build ▁a ▁peace ful ▁civil ization , ▁as ▁f od der ▁for ▁their ▁power - drive . ▁ ▁The ▁Ar is ians ▁detect ▁the ▁Edd ori ans ' ▁invasion ▁of ▁our ▁universe ▁and ▁realize ▁that ▁they ▁are ▁too ▁even ly ▁matched ▁for ▁either ▁to ▁destroy ▁the ▁other ▁without ▁being ▁destroyed ▁themselves . ▁The ▁Edd ori ans ▁do ▁not ▁detect ▁the ▁Ar is ians , ▁who ▁begin ▁a ▁cover t ▁bre eding ▁program ▁on ▁every ▁world ▁that ▁can ▁produce ▁intellig ent ▁life , ▁with ▁particular ▁emphas is ▁on ▁the ▁four ▁plan ets ▁Earth ▁( T ell us ), ▁Vel ant ia ▁III , ▁R ig el ▁IV , ▁and ▁Pal ain ▁VII , ▁in ▁the ▁hope