technology #Space #1976 #50thAnniversary #July1 #Lander #Mars #MichaelCollins #NationalAirAndSpaceMuseum #PresidentGeraldFord #RibbonCutting #RoboticArm #Signal #Smithsonian #SpaceExploration #SpaceHistory #SurfaceSamplerArm #Viking1 #WarrenBurger A space history mystery: What happened to the Viking arm used 50 years ago? Ars Technica Wed
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