In exhilarating and behind-the-scenes detail, Panek takes his readers on a tour of the bitter rivalries and fruitful collaborations, the eureka moments and blind alleys, that have fueled the search, redefined science, and reinvented the universe.

Science journalist Panek (The Invisible Century) offers an insider's view of the quest for what could be the ultimate revelation: the true substance of the unseen dark matter and energy that makes up some 96% of our universe.