From the album: Dusty's Box
"Whaddaya mean there's no air in space?" This is Space Case. She's a very determined pegasus that lives in her own little world and gets frustrated when other ponies can't see her point of veiw. She's convinced she can fly to the moon but once she flies so high and the air thins, she gets dizzy and comes spiraling back to earth. She's been doing this for years. It might explain why she can come off as air-headed.