Caption: A protest in the Pluto de-planet controversy: "Pluto ♇ is more of a planet than Uranus ↑☉,♅ will ever be!!!"

Alas, Pluto ♇!

There is this thing Eris (which is a dwarf planet under the new Rules of the Game (1939 film) and was discovered in 2005) which is comparable in size to Pluto and more massive.

The pesky trans-Neptunian object (TNO) Eris caused a whole nomenclature cataclysm from which we are still recovering and resulted in the degradation of Pluto to dwarf planet-dom in 2006 (see Wikipedia: Pluto: IAU classification).

Once Pluto was the NINTH PLANET, now it is an ex-planet. Once children used to recite the mnemonic "Man very early made jars stand up nearly perpendicularly."---but now no more. Pluto still has a faded glory.

Credit/Permission: © AP Photo/Seattlepi.com, Joshua Trujillo, before or circa 2006 / No Permission, so the image is only linked from a Science (journal) article On the birthday of Pluto's discovery, Science takes a look back on the dwarf planet's long, strange history, Dorie Chevlen, 2017feb17.
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