PHPluto technically isn't even a year old
Pluto was discovered on February 18th, 1930. It is the farthest (dwarf) planet from the Sun, requiring it to go a much farther distance than we are used to on Earth. It takes 248 Earth-years for Pluto to complete one rotation of its own around the sun. This places Pluto's first birthday since its discovery on Monday, March 23, 2178.
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