"Every massive star leaves behind a black hole when it dies, and every galaxy harbors a supermassive black hole at its center. Frighteningly enigmatic, these dark giants continue to astound even the scientists who spend their careers studying them. Impey takes readers on an exploration of the cutting edge of astrophysics, as well as the history of black holes' role in theoretical physics. From confirming Einstein's equations for general relativity to testing string theory, he reveals how our comprehension of black holes is intrinsically linked to how we make sense of the universe and our place within it."
The Universe in Your Hand employs the immediacy of simple, direct language to show us, not explain to us, the theories that underpin everything we know about our universe. To understand what happens to a dying star.......
Since ancient times people around the world have used astronomy to time the seasons, to navigate at sea, and to understand our world. Selections in this volume span the history of astronomy from the earliest star charts to contemporary plans for planetary expeditions.
Discover the wonders of the night sky with this bestselling Astronomy Guide For a generation, "Astronomy: A Self-Teaching Guide" has introduced hundreds of thousands of readers worldwide to the night sky.