In laboratories from Brazil to Munich, researchers are learning to grab matter with sound alone, sculpting ultrasonic waves into invisible “hands” that can lift, push, and rotate objects without a ...

The Universe holds many mysteries, and among the most intriguing is dark matter, an invisible component that is thought to represent about 85% of all cosmic matter. Although it neither emits nor ...

Explore black hole discovery in astrophysics, from hidden stellar remnants to supermassive giants, and learn how scientists detect these invisible cosmic objects using light and gravitational waves.

Black hole discovery reshaped astrophysics by proving that some of the universe's most powerful objects cannot be seen directly but can be measured through their effects on space and time. Signals ...

A 3D-printing technique can incorporate invisible tags into objects. The process could be used to create tags with the convenience of QR codes without the unsightly appearance, as well as to turn ...