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1、In1970,a Zambia-basednunnamedSisterMaryJucundawroteto Dr.ErnstStuhlinger, then-associatedirectorofscienceatNASA's MarshallSpaceFlightCenter, inresponsetohis ongoingresearch intoapilotedmissiontoMars. Specifically,sheaskedhowhecouldsuggestspendingbillionsofdollarsonsuch
2、aprojectatatimewhensomanychildrenwerestarvingonEarth.StuhlingersoonsentthefollowingletterofexplanationtoSisterJucunda,alongwithacopyof "Earthrise,"theiconicphotographofEarthtakenin1968byastronautWilliamAnders,fromtheMoon(alsoembeddedinthetranscript).Histhoughtfulreplyw
3、aslaterpublishedbyNASA,andtitled,"WhyExploreSpace?"(Source: RogerLaunius,via GavinWilliams;Photoabove:ThesurfaceofMars,takenby Curiosity today,August6th,2012.Via NASA.)May6,1970DearSisterMaryJucunda:Yourletterwasoneofmanywhicharereachingmeeveryday,butithastouchedmemore
4、deeplythanalltheothersbecauseitcamesomuchfromthedepthsofasearchingmindandacompassionateheart.IwilltrytoansweryourquestionasbestasIpossiblycan.First,however,Iwouldliketoexpressmygreatadmirationforyou,andforallyourmanybravesisters,becauseyouarededicatingyourlivestothenob
5、lestcauseofman:helpforhisfellowmenwhoareinneed.YouaskedinyourletterhowIcouldsuggesttheexpendituresofbillionsofdollarsforavoyagetoMars,atatimewhenmanychildrenonthisEartharestarvingtodeath.Iknowthatyoudonotexpectananswersuchas"Oh,Ididnotknowthattherearechildrendyingfromh
6、unger,butfromnowonIwilldesistfromanykindofspaceresearchuntilmankindhassolvedthatproblem!"Infact,IhaveknownoffaminedchildrenlongbeforeIknewthatavoyagetotheplanetMarsistechnicallyfeasible.However,Ibelieve,likemanyofmyfriends,thattravellingtotheMoonandeventuallytoMarsandt
7、ootherplanetsisaventurewhichweshouldundertakenow,andIevenbelievethatthisproject,inthelongrun,willcontributemoretothesolutionofthesegraveproblemswearefacinghereonEarththanmanyotherpotentialprojectsofhelpwhicharedebatedanddiscussedyearafteryear,andwhicharesoextremelyslow
8、inyieldingtangibleresults.BeforetryingtodescribeinmoredetailhowourspaceprogramiscontributingtothesolutionofourEarthly
