▁Texas ; ▁the ▁city ▁of ▁Houston ▁has ▁the ▁ 4 th ▁largest ▁population ▁in ▁the ▁United ▁States ▁and ▁largest ▁population ▁in ▁Texas . ▁D F W ▁is ▁the ▁ 4 th ▁largest ▁metropol itan ▁area ▁in ▁the ▁US , ▁while ▁the ▁Gre ater ▁Houston ▁area ▁is ▁the ▁ 5 th ▁largest ▁in ▁the ▁US . ▁ ▁There ▁is ▁also ▁contrast ▁between ▁the ▁R angers ▁and ▁Ast ros ▁in ▁their ▁ball park ▁and ▁uniform ▁histor ies . ▁The ▁R angers , ▁until ▁ 2 0 2 0 , ▁played ▁in ▁open - air ▁stad iums ▁( Ar ling ton ▁Stadium ▁and ▁R angers ▁Ball park ▁in ▁Ar ling ton ), ▁while ▁the ▁Ast ros ▁have ▁mostly ▁played ▁in ▁ind oor ▁stad iums ▁( A st rod ome ▁and ▁Min ute ▁Ma id ▁Park ). ▁While ▁the ▁R angers ▁have ▁tradition ally ▁worn ▁variations ▁of ▁red , ▁white , ▁and ▁blue ▁to ▁represent ▁the ▁L one ▁Star ▁flag , ▁the ▁Ast ros ▁have ▁changed ▁color ▁schemes ▁( e . g . ▁Sho oting ▁Star ▁of ▁the ▁late ▁ 1 9 6 0 s , ▁Rain bow ▁G uts ) ▁and ▁log os ▁many ▁times ▁throughout ▁their ▁history . ▁ ▁History ▁ ▁The ▁L one ▁Star ▁Series ▁was ▁the ▁consequence ▁of ▁many ▁things ▁that ▁happened ▁to ▁Texas ▁in ▁the ▁ 1 9 5 0 s : ▁population ▁shift ▁west ward ▁from ▁metropol itan ▁areas ▁on ▁the ▁East ▁Coast , ▁the ▁space ▁program , ▁more ▁modern ized ▁higher ▁education , ▁and ▁the ▁formation ▁of ▁the ▁brief ▁Cont