Black Holes: The Weird Science of the Most Mysterious Objects in the Universe
Black Holes THE WEIRD SCIENCE OF THE MOST MYSTERIOUS OBJECTS IN THE UNIVERSE SARA LATTA Twenty-First Century Books Minneapolis
DATA FROM FOUR DIFFERENT TYPES OF TELESCOPES CREATED THIS IMAGE OF THE SPIRAL GALAXY MESSIER 106 ALSO KNOWN AS NGC 4258 AT THE CENTER OF THIS GALAXY IS A MASSIVE BLACK HOLE 1 WHAT IS A BLACK HOLE F irst things first Did you know that black holes are made of warped space and warped time They have mass but no matter Their gravitational pull is so great that nothing not even light can escape their grasp They sound simple until you try to wrap your brain around them Even Albert Einstein a physicist whose general theory of relativity 1915 predicted the existence of black holes refused to believe that they were real In a 1939 paper Einstein said The essential result of this investigation is a clear understanding as to why the Schwarzschild singularities as black holes were known at the time do not exist in physical reality Or nice idea pal but hey we live in the real world To really understand black holes and maybe to feel smarter than Einstein when you realize they really do exist it helps to take a trip back in time 5