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60 years ago today, a spacecraft zipped past planet Venus for the 1st time ever
Human-built spacecraft have been exploring other planets for a full 60 years. On Dec. 14, 1962, a NASA spacecraft called Mariner 2 flew past Venus in the first-ever planetary flyby. The maneuver gave the spacecraft 42 minutes to observe what scientists now consider Earth's hellish twin — whose hidden surface at the time was thought to be lush, tropical jungle or swamp.
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