Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent to the detonation of a hundred million hydrogen bombs. Vaporized detritus blasted through the atmosphere upon impact, falling back to Earth around the globe. Disastrous environmental consequences ensued: a giant tsunami, continent-scale wildfires, darkness, and cold, followed by sweltering greenhouse heat. When conditions returned to normal, half the plant and animal genera on Earth had perished.

This horrific chain of events is now widely accepted as the solution to a great scientific mystery: what caused the extinction of the dinosaurs? Walter Alvarez, one of the Berkeley scientists who discovered evidence of the impact, tells the story behind the development of the initially controversial theory. It is a saga of high adventure in remote locations, of arduous data collection and intellectual struggle, of long periods of frustration ended by sudden breakthroughs, of friendships made and lost, and of the exhilaration of discovery that forever altered our understanding of Earth's geological history.

• We started tracking this book on February 17, 2019.
• This book was £11.69 when we started tracking it.
• The price of this book has changed 81 times in the past 2,296 days.
• The current price of this book is £2.48 last checked 4 hours ago.
• The lowest price to date was £2.48 last reached on May 29, 2025.
• This book has been £2.48 one time since we started tracking it.
• The highest price to date was £15.19 last reached on August 6, 2024.
• This book has been £15.19 one time since we started tracking it.
• This book is currently at its lowest price since we started tracking it.

• Science & MathsBiological SciencesPaleontology

• Publication Date: June 25, 2013
• Text-to-Speech: Disabled
• Lending: Disabled
• Print Length: 202 Pages
• File Size: 76 KB