SPACE & ASTRONOMY: The Planets

To remember the order of the planets, from closest to furthest from the sun, use this sentence:

My Very Educated Mother Just Served Us Nachos

The first letter of each word stands for the name of a planet:

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

(To count Pluto as a planet, just end the sentence with "Nine Pizzas" instead of "Nachos")

Thanks to aluminumtulips for the suggestion!