An accessible and visually arresting picture book about the smallest known and most mysterious particle of matter, for the youngest scientific minds. I am one of the most mysterious particles in the universe. I'm tiny and light, and I can pass right through you. In fact, trillions of me fly through your body every second. I'm ... a NEUTRINO!Before you finish reading this sentence, trillions upon trillions of neutrinos will have passed through your body. Not sure what a neutrino is? This dazzling picture book from a renowned cosmologist introduces young readers to the smallest bits of matter known to exist. And they exist everywhere! Filled with fascinating, full-bleed illustrations that swirl and splash the cosmos to life, this incredible STEM title shows us the wonders of our universe, encouraging children and future Nobel Prize-winners to dream of their own groundbreaking discoveries.