Pluto Stamp Earns GUINNESS WORLD RECORDS Title
July 19, 2016 09:13 ET
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United States Postal Service
WASHINGTON, July 19, 2016 (GLOBE NEWSWIRE) -- A 1991 Pluto: Not Yet Explored stamp traveled more than 3 billion miles on a spacecraft to the dwarf planet has earned the GUINNESS WORLD RECORDS...