Our memories are amazing and able to store some 2.5 petabytes of data—about 300 million hours of television programming. But how do we make memories, and why do we forget? What’s our memory like now, with our digital-era brains, and what can we do to build a better memory? All of these questions and more are answered in this new special edition from the editors of TIME, The Science of Memory. Herein, you’ll learn about the Time-Bending Magic of Smell, the Myths of Aging, and Why Sleeping on It Is Key for Memory.