Description Blast off into outer space with this interactive trivia book from Jeopardy! host and champion and New York Times bestselling author Ken Jennings-featuring updated facts! Take one giant leap into space with Ken Jennings to become a Junior Genius! In this book about outer space, you'll discover Mars's massive volcanoes, witness the birth of stars like our sun, explore black holes, and more! With stellar illustrations, cosmic facts, and out-of-this-world activities, this Junior Genius Guide will have you reaching for the stars!