▁Ex o - Bra ke ▁The ▁first ▁test ▁of ▁the ▁Ex o - Bra ke ▁system ▁from ▁orbit ▁began ▁with ▁the ▁launch ing ▁of ▁the ▁Te ch Ed S at - 3 p ▁n ano - s at ellite ▁from ▁the ▁International ▁Space ▁Station ▁on ▁November ▁ 1 9 , ▁ 2 0 1 3 . ▁ ▁Te ch Ed S at - 4 ▁is ▁expected ▁to ▁test ▁an ▁Ex o - Bra ke ▁with ▁variable ▁drag ▁in ▁ 2 0 1 4 . ▁ ▁Te ch Ed S at - 3 p ▁took ▁over ▁ 6 0 ▁days ▁to ▁de or bit , ▁while ▁Te ch Ed S at - 4 ▁re enter ed ▁in ▁about ▁ 3 0 ▁days . ▁ ▁A ▁newer ▁Ex o - Bra ke ▁system ▁was ▁tested ▁on ▁Te ch Ed S at - 5 , ▁deployed ▁from ▁the ▁I SS ▁in ▁ 2 0 1 7 . ▁It ▁is ▁a ▁flexible ▁cross ▁shape ▁that ▁can ▁be ▁war ped ▁for ▁ste ering ▁during ▁re entry . ▁ ▁SO A RE X ▁Fl ights ▁Several ▁investig ations ▁related ▁to ▁the ▁SP Q R ▁programs ▁and ▁Te ch Ed S at ▁have ▁been ▁flow n ▁on ▁Sub - Or b ital ▁Aer od ynamic ▁Re - entry ▁Exper iments ▁( SO A RE X ) ▁sound ing ▁rock ets ▁fl ights . ▁ ▁SO A RE X - 6 ▁fle w ▁ 2 7 ▁November ▁ 2 0 0 8 ▁on ▁an ▁AT K ▁Sub - orb ital /