'Jupiter has one of these named Ganymede that's about the same size as the planet Mercury'
a moon
JUMPING JUPITER!: Jupiter has one of these named Ganymede thats about the same size as the planet Mercury
Jupiter has one of these named Ganymede that's about the same size as the planet Mercury
Jupiter has one of these named Ganymede that's about the same size as the planet Mercury
JUMPING JUPITER!
a moon
JUMPING JUPITER!