“James Lawrence Powell breaks new ground. His scholarship is deep, and his stories are well-written and enriched with human detail. Anyone with an interest in how science progresses will profit from reading this book.” —Spencer Weart, author of THE DISCOVERY OF GLOBAL WARMING
“Deep time, continental drift, meteorite impact and climate change: each of these twentieth-century geoscientific discoveries was once viewed as heretical. So reminds geologist James Powell in this exemplary treatise on scientific progress. He traces the evolution of each landmark finding through the work of the dogged researchers who proved it, step by step. Many fights were hard-won, as shown in the efforts of Gene Shoemaker, Luis and Walter Alvarez, Robin Canup and others who established connections between meteorite impact, the birth of the Moon and the extinction of the dinosaurs.” —Nature.