24 August 2011
Solar Explorer
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The day the Solar System lost a planet

I can’t believe that five years ago today, the 24th of August, Pluto was demoted from planet to the category of dwarf planet. Pluto is not a big object, and since it’s discovery in 1930 we’ve found a number of other objects that are of a similar size, or even larger. If Pluto is considered […]