The planets are throwing Sun a birthday party! Mercury wants to thank Sun for how close they are. (Being the closest planet has its perks.) Earth enjoys Sun's warmth. And all the planets want to celebrate Sun's magnetic personality. But party planning takes work. Do they even have room for all of Jupiter's moon? Don't space out. It's time for this star-studded event! Blast off with Jan Carr and Pura Belpre Award-winning illustrator Juana Medina's quick-witted and fact-filled picture book about the solar system and all of its (inter)stellar inhabitants.