With the successful flyby of Pluto this week, the human race has now visited all the 'classical' planets.
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| Pluto and Charon Show Exactly Why They Are Dwarf Planet and Satellite .... |
Of course technically Pluto ceased to be classed as a planet, as it was
just too small, especially after the discovery of Eris and Orcus
alongside it in the Kuiper Belt.
