BLACK HOLE BY MARCIA BARTUSIAKFor more than half a century, physicists and astronomers engaged in heated dispute over the possibility of black holes in the universe. The strange notion of a space time abyss from which not even light escapes seemed to confound all logic. Now Marcia Bartusiak, author of Einstein's Unfinished Symphony and The Day We Found the Universe, recounts the frustrating, exhilarating, and at times humorous battles over one of history's most dazzling ideas.