Quantum mechanics is the study of the dynamics of particles at its most fundamental level. The state of a particle, such as its position or momentum, is described by a statistical distribution given ...

Condensed-matter physics is the study of substances in their solid state. This includes the investigation of both crystalline solids in which the atoms are positioned on a repeating three-dimensional ...

Here’s what you’ll learn when you read this story: For more than 50 years, scientists theorized that an electromagnetic wave could be reflected temporally—not just spatially. Scientists have been ...

ON AN OCTOBER night in 1989, a 4-year-old girl was shocked awake by a phone ringing and then a scream. She crept out of her bedroom and tiptoed barefoot along the hallway’s clammy vinyl tile, ...