Marcus Chown - A Crack In Everything : How black holes came in from the cold

This glorious popular science books tells the story of how black holes that were  thought to be too ridiculous to exist in 1916 had by 1971  been proved to exist. Einstein thought they were impossible but in 1971 Paul Murdin and Louise Webster discovered the very first black hole, Cygnus X-1 Marcus tells the story of these extraordinary people who discovered that black holes are centre stage in the cosmos. Indeed without black holes it is unlikely that we would exist. Fasten your seat belts and prepare to be amazed. A great book for the curious!!