In the new device, an array of 256 speakers, each about 1 centimeter wide, faces another, identical speaker array across a distance of 23 centimeters. The speakers emit sound waves at frequencies too ...

Physicists have engineered photons that behave as if they inhabit a space far richer than the familiar three dimensions, ...

Scientists are redirecting their hunt for the universe's missing matter from minute particles to large, star-sized, near-invisible structures. For a long time, it was hypothesized that dark matter, ...