"The astonishing science of black holes and their role in understanding the history and future of our universe. Black holes are the most extreme objects in the universe, and yet they are ubiquitous. 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. Which...

"This book explores the subject of gravity in a fresh way, taking the reader from Newton to the frontiers of gravitational physics. Per Einstein's general theory of relativity, gravity is a manifestation of the curvature of spacetime, and this is an excellent and robust framework for understanding gravity in many situations. However, physicists nowadays also often understand gravity as the manifestation of a fundamental particle - the graviton - in...

"On November 25th, 1915, Albert Einstein published his field equations of general relativity and reinvented gravity. Rather than being some mysterious unseen force pulling objects together, gravity, Einstein told the world, is a manifestation of the curvature of space-time caused by the presence of massive objects. But Einstein's theory wasn't born in a vacuum, not even the vacuum of space. Instead, the theory of general relativity relies upon complicated...