ac , ▁Trans it   4 B , ▁In j un   I ▁and ▁Tel star   I .   ▁ ▁It ▁also ▁dam aged ▁the ▁Soviet ▁satellite ▁Cos mos   V .   ▁All ▁of ▁these ▁sat ell ites ▁failed ▁completely ▁within ▁several ▁months ▁of ▁the ▁Star fish ▁det on ation . ▁▁ ▁Tel star   I ▁last ed ▁the ▁longest ▁of ▁the ▁sat ell ites ▁dam aged ▁by ▁the ▁Star fish ▁Prime ▁radiation , ▁with ▁its ▁complete ▁failure ▁occurr ing ▁on ▁February ▁ 2 1 , ▁ 1 9 6 3 . ▁ ▁In ▁Los ▁Al amos ▁Scient ific ▁Labor atory ▁report ▁LA - 6 4 0 5 , ▁H erman ▁Ho er lin ▁gave ▁the ▁following ▁explanation ▁of ▁the ▁history ▁of ▁the ▁original ▁Arg us ▁experiment ▁and ▁of ▁how ▁the ▁nuclear ▁det on ations ▁lead ▁to ▁the ▁development ▁of ▁artificial ▁radiation ▁bel ts . ▁ ▁In ▁ 2 0 1 0 , ▁the ▁United ▁States ▁Def ense ▁Th re at ▁Red u ction ▁Agency ▁issued ▁a ▁report ▁that ▁had ▁been ▁written ▁in ▁support ▁of ▁the ▁United ▁States ▁Commission ▁to ▁Ass ess ▁the ▁Th re at ▁to ▁the ▁United ▁States ▁from ▁Elect romagnet ic ▁P ulse ▁Att ack . ▁ ▁The ▁report , ▁entitled ▁" Coll ater al ▁Dam age ▁to ▁Sat ell ites ▁from ▁an ▁E MP ▁Att ack ," ▁discuss es ▁in ▁great ▁detail ▁the ▁historical ▁events ▁that ▁caused ▁artificial ▁radiation ▁bel ts ▁and ▁their ▁effects ▁on ▁many ▁sat ell ites ▁that ▁were ▁then ▁in ▁orbit . ▁ ▁The