A new study suggests the existence of a direct interaction between the elementary particles that make up the dark matter and ordinary matter

The photoelectric effect is a phenomenon in which electrons are ejected from the surface of a metal when light is incident on it.

Nuclear scientists have used a powerful particle accelerator to create matter directly from collisions of light.

“Quantum entanglement” is one of several plot devices that appear in modern science fiction movies. But the term isn’t just a buzzword.

More than 90 years ago, physicist Eugene Wigner predicted that at low densities and cold temperatures, electrons would freze into place.