What is a supernova? Readers will learn the answer in this book! They will discover the life cycle of a star, how supernovas are observed, and who originally identified these sizzling sights. Readers will also be introduced to other hot objects in the universe, such as neutron stars, ion colliders, and Earth's core. Aligned to Common Core Standards and correlated to state standards. A&D Xtreme is an imprint of Abdo Publishing, a division of ABDO.