Scientific American Explores Big Ideas: Set 4

The world is a big place--filled with big concepts! This series delves into some of the most compelling ideas and questions of our time, inspiring readers to think critically about the world around them. Scientific American presents fascinating and thought-provoking explorations of the latest science-related issues and discoveries affecting our world today. Through the work of experts in various scientific fields, curious readers will be empowered to understand this century's evolving challenges and help shape the future.