ates ▁were ▁still ▁oper ational , ▁allowing ▁the ▁Pol aris ▁to ▁advance ▁techn olog ically . ▁Just ▁over ▁ 5 0 0 ▁years ▁later , ▁the ▁Federation ▁( success or ▁to ▁the ▁Col onial ▁Council ) ▁sent ▁a ▁military ▁task ▁force ▁into ▁Pol aris ▁space , ▁which ▁the ▁Pol aris ▁destroyed ▁quickly . ▁ ▁The ▁Pol aris ▁have ▁six ▁separate ▁cast es , ▁set ▁up ▁so ▁that ▁the ▁skills ▁of ▁an ▁individual ▁can ▁be ▁best ▁util ized ▁by ▁the ▁cas te ▁he ▁or ▁she ▁becomes ▁a ▁member ▁of . ▁ ▁V ell - os ▁The ▁V ell - os ▁are ▁a ▁tele path ic ▁race . ▁They ▁were ▁led ▁out ▁to ▁space , ▁un ited ▁by ▁their ▁tele path ic ▁powers ▁by ▁the ▁Indian ▁prince ▁V ell - os ▁in ▁around ▁A . D . ▁ 9 8 0 . ▁The ▁V ell - os ▁do ▁not ▁pilot ▁true ▁ships ; ▁the ▁objects ▁they ▁use ▁are ▁simply ▁psych ic ▁pro jections ▁made ▁by ▁the ▁V ell - os ▁inside . ▁They ▁class ify ▁humans ▁and ▁V ell - os ▁who ▁have ▁tele path ic ▁ab ilities ▁into ▁seven ▁ranks , ▁or ▁" T " s . ▁The ▁lowest ▁rank ▁possible ▁is ▁T 6 ▁( all ▁normal ▁humans ▁are ▁at ▁this ▁level ▁with ▁no ▁actual ▁tele path ic ▁ability ), ▁and ▁starting ▁with ▁actual ▁tele path ic ▁powers ▁at ▁T 5 , ▁continues ▁down ward ▁until ▁T 0 , ▁the ▁highest ▁rank ▁a ▁tele path ▁can ▁ever ▁achieve . ▁No ▁V ell - os