▁local ▁motion ▁of ▁the ▁expl oding ▁matter , ▁a ▁phenomen on ▁analog ous ▁to ▁frame ▁drag ging . ▁ ▁The ▁situation ▁changes ▁somewhat ▁with ▁the ▁introduction ▁of ▁dark ▁energy ▁or ▁a ▁cosm ological ▁constant . ▁A ▁cosm ological ▁constant ▁due ▁to ▁a ▁vac u um ▁energy ▁density ▁has ▁the ▁effect ▁of ▁adding ▁a ▁rep uls ive ▁force ▁between ▁objects ▁which ▁is ▁proportional ▁( not ▁in vers ely ▁proportional ) ▁to ▁distance . ▁Un like ▁in ert ia ▁it ▁act ively ▁" pull s " ▁on ▁objects ▁which ▁have ▁cl ump ed ▁together ▁under ▁the ▁influence ▁of ▁gravity , ▁and ▁even ▁on ▁individual ▁atoms . ▁However , ▁this ▁does ▁not ▁cause ▁the ▁objects ▁to ▁grow ▁stead ily ▁or ▁to ▁dis integr ate ; ▁unless ▁they ▁are ▁very ▁weak ly ▁bound , ▁they ▁will ▁simply ▁sett le ▁into ▁an ▁equilibrium ▁state ▁which ▁is ▁slightly ▁( und et ect ably ) ▁larger ▁than ▁it ▁would ▁otherwise ▁have ▁been . ▁As ▁the ▁universe ▁exp ands ▁and ▁the ▁matter ▁in ▁it ▁th ins , ▁the ▁gravit ational ▁att raction ▁decre ases ▁( since ▁it ▁is ▁proportional ▁to ▁the ▁density ), ▁while ▁the ▁cosm ological ▁rep ulsion ▁increases ; ▁thus ▁the ▁ult imate ▁fate ▁of ▁the ▁ Λ CD M ▁universe ▁is ▁a ▁near ▁vac u um ▁expand ing ▁at ▁an ▁ever - in cre asing ▁rate ▁under ▁the ▁influence ▁of ▁the ▁cosm ological ▁constant . ▁However , ▁the ▁only ▁locally ▁visible ▁effect ▁of ▁the ▁acceler ating ▁expansion ▁is ▁the ▁disapp earance ▁( by ▁run away ▁red shift )