▁birth s ▁Category : 1 9 1 1 ▁death s ▁Category : S ports people ▁from ▁Br idget own ▁Category : Bar bad ian ▁cr ick eters <0x0A> </s> ▁John ▁Edward ▁Ge ake ▁( 2 2 ▁April ▁ 1 9 2 5 ▁– ▁ 3 ▁June ▁ 1 9 9 8 ) ▁was ▁a ▁British ▁astronom er , ▁noted ▁as ▁a ▁lun ar ▁scient ist , ▁and ▁scientific ▁instrument ▁designer . ▁ ▁Career ▁▁ ▁His ▁post grad uate ▁studies ▁at ▁U M IST ▁related ▁to ▁the ▁study ▁of ▁astronom ical ▁spect ra ▁using ▁a ▁photo elect ric ▁phot ometer . ▁His ▁work ▁parallel led ▁that ▁of ▁H ilt ner ▁( 1 9 1 4 – 1 9 9 1 ) ▁and ▁his ▁group ▁in ▁U . S . A .; ▁although ▁at ▁the ▁time , ▁neither ▁knew ▁of ▁the ▁other ' s ▁work , ▁and ▁their ▁methods ▁were ▁different . ▁This ▁research ▁( which ▁was ▁long ▁before ▁the ▁days ▁of ▁space ▁expl oration ) ▁led ▁to ▁labor atory ▁measurement ▁of ▁lum ines c ence ▁from ▁meteor ite ▁samples , ▁which ▁could ▁be ▁compared ▁with ▁lun ar ▁lum ines c ence ▁in ▁an ▁attempt ▁to ▁determine ▁the ▁composition ▁of ▁the ▁lun ar ▁surface . ▁ ▁His ▁expert ise ▁was ▁recogn ised ▁by ▁both ▁the ▁American ▁and ▁the ▁Soviet ▁space ▁ag encies , ▁both ▁of ▁whom ▁allocated ▁to ▁him ▁lun ar ▁samples ▁for ▁study . ▁He ▁was ▁a ▁NASA ▁principal ▁investig ator , ▁and ▁an ▁editor ▁of ▁L un ar ▁Science ▁Conference ▁Pro ceed ings