The Planetary Society Book Club: A Crack in Everything by Marcus Chown

The amazing history of black holes, the strangest objects in the universe, is chronicled by award-winning science communicator Marcus Chown through the stories of the men and women who made the key discoveries. Marcus joined the Society's Mat Kaplan for this entertaining and fascinating discussion. It includes the relatively recent realization that the supermassive black hole at the heart of the Milky Way galaxy may be responsible for life on Earth.