Luna is a teen girl, though for monologue purposes could be played by an actor of either gender. She's speaking to the audience.
(Warning: Using this monologue without permission is illegal, as is reproducing it on a website or in print in any way.)
So when a planet gets demoted, what about its moons? One second, they're all planetary and sexy, and the next they're little chunks of rock orbiting some slightly bigger chunk of rock.
It's like this woman in my neighborhood whose dad was a big general in communist Romania. One day she's growing up on easy street with the nicest toys and the best schools and dance lessons and caviar...and then he writes this novel that makes fun of the government and boom, hello prison for daddy and goodbye everything for the family. Not a good day to be a moon, the day that planet fell out of orbit.
But after it happened, they didn't all burst into flames or fall apart into nothing. They kept right on going, as if everything was exactly the same. As if Pluto was every bit what it once was. As if he was right there at the table, eating a cheeseburger hold the cheese every Wednesday. And sometimes that's harder than hell, because all around you, you get the sense that everyone wishes you'd just disintegrate, because it would be easier to forget what happened here. But sooner or later everyone's gotta face it. We're going to have to answer for our crimes against Pluto.