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Discovered in 1930, Pluto still has not finished one full orbit— And it won’t until year 2178
Pluto has not completed a single orbit since its 1930 discovery. With a 248-year journey around the Sun, the dwarf planet will finish its first full circuit in 2178.
Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.
When you buy through links on our articles, Future and its syndication partners may earn a commission. This image of Pluto was made after the New Horizons spacecraft flew past the dwarf planet on July ...
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