Long Wait for a Birthday on Pluto

Earth takes about 365 days, or one Earth year, to make 1 trip around the Sun. Mercury only takes 88 days, while a Martian year lasts 687 days. Pluto is so far away, that it hasn’t completed a trip around the Sun since it was first discovered, in 19 30! Pluto takes 248 Earth years, to orbit the Sun.

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