When we try to get rid of a bad habit, whether it involves food or drugs or gambling, it often seems like we’re fighting ourselves inside. The reality’s not far off: Addiction twists the reward pathways of the brain to keep addicts tied to whatever gets them high.

What’s the most complex structure in the known universe? Hint: You’re using it right now to answer to this question. While you keep brainstorming, let’s discuss your cerebral cortex. This …

Andrew Strominger, renowned for his work on black holes, string theory, and quantum gravity, joins Brian Greene to describe his latest results and how some of them may be testable …

From a bee’s hexagonal honeycomb to the elliptical paths of planets, symmetry has long been recognized as a vital quality of nature. Today’s theorists are pursuing an even more exotic symmetry that, mathematically speaking, could be nature’s final fundamental symmetry: supersymmetry.

Humans work together on enormous scales to build complex tools as large as cities and create social networks that span the globe. What is the key to our success? This …

A self-driving car has a split second to decide whether to turn into oncoming traffic or hit a child who has lost control of her bicycle. An autonomous drone needs to decide whether to risk the lives of busload of civilians or lose a long-sought terrorist. How does a machine make an ethical decision?