How One Memory Attaches to Another

A technical revolution provides insight into how the brain links memories, a process critical for understanding and organizing the world around us

Is Dark Matter Made of Black Holes?

A hidden population of black holes born less than one second after the big bang could solve the mystery of dark matter

"Positive Cities" Can Improve the Earth as Well as People's Lives

Urban areas can improve the planet as well as people's lives if we design them to be much more resourceful with energy, water, food and minerals

Sustainable Cities Put Waste to Work

Transforming costly wastes into valuable resources can make cities highly efficient

How Driverless Cars Will Transform Cities

A moving web of sensor-laden vehicles and smart intersections will transform how we get around town

Why the Most Powerful Treatment for Diabetes Turns Out to Be Surgery

Surgery that shortens intestines gets rid of the illness, and new evidence shows the gut—not simply insulin—may be responsible

Does Dancing Just Feel Good, or Did It Help Early Humans Survive?

Do humans dance just for fun, or did it help our ancestors survive thousands of years ago?

Is Lip Syncing a Form of Cheating?