Add Yahoo as a preferred source to see more of our stories on Google. On Sept. 27, 1997, NASA's Mars Pathfinder mission beamed its very last data transmission back to Earth. The Mars Pathfinder ...
Death Valley days -- Tango Delta : touchdown -- A long road to a Red Planet -- Setting the stage -- The scarecrow -- Laying the foundation : Mars Pathfinder -- Curiosity's cousins : Spirit and ...
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