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31px 22p color photo illustration of Mars with headline 'Pathfinder's... News Photo1997,Color Image,Geology,Horizontal,Human Interest,Illustration,Illustration Technique,Interactivity,Newspaper Headline,Order,Photography,Planet - Space,Rover,Space,Sun,Technology,USAPhotographer Collection: Tribune News Service 1997 MCTUSA - 1997: 31px 22p color photo illustration of Mars with headline 'Pathfinder's Mission: Did Life Exist on Mars?' (MCT via Getty Images)