Einstein dreamed of a unified theory of nature’s laws. String theory has long promised to deliver it: a mathematically elegant description that some have called a “theory of everything.” Join …

It’s the thought of your childhood home. It’s that comforting aroma you can still smell ten years later. It’s the way you define yourself. It’s your memory. Where is memory stored? How do we recall? Why do we forget?

2018 marks the tenth anniversary of the prestigious Kavli Prize, which recognizes scientists for major advances in three research areas: astrophysics, nanoscience, and neuroscience—the big, the small, and the complex. …

A second doesn’t always feel like a second—time can seem to slow down if you’re riding a death-defying roller coaster, or speed up while you’re having a night out on the town. But just what’s going on inside our heads to skew our perception of time?

The first electron microscopes enabled scientists to finally view the nanoworld. But because of limitations in the microscope’s lenses, achieving sharp images of individual atoms was not possible. For 60 …

Invention and innovation are the mark of robotics engineer Dennis Hong’s lab. Watch as he demonstrates some of the remarkable robots that his team has built. The robots walk on …