In Cosmic Conundrum, sixth grader Serafina Sterling finds herself accepted into the Ivy League of space adventures for commercial astronauts, where she'll study with Jeronimo Musgrave, a famous and flamboyant scientist who brought jet-engine minivans to the suburbs. Unfortunately, Serafina also meets Ida Hammer, a 12-year-old superstar of science who has her own theorem, a Nobel-Prize-winning mother, impeccable fashion sense-and a million social media...