"The tally of planets in our solar system would jump instantly to a dozen under a highly controversial new definition proposed by the International Astronomical Union (IAU)."So now I need to update my rhyme:
"Marsha Van Eats Mulberry Jam, Sitting Upon Neds Pony."
"Mercury, Venus, Earth, Mars, Ceres, Jupiter, Saturn, Uranus, Neptune, Pluto, Charon, and the provisionally named 2003 UB313."
"Marsha Van Eats Mulberry Currant Jam, Sitting Upon Neds Pony Circa 2003." ;-)