Usually, light waves can pass through each other without any resistance. According to the laws of electrodynamics, two light ...

Discover what happens when light collides with light. Explore the science behind photon-photon interaction, quantum ...

Scientists have shown that light can interact with itself in bizarre ways—creating ghost-like virtual particles that pop in and out of existence.

MIT physicists have performed an idealized version of one of the most famous experiments in quantum physics. Their findings ...

To help you find the best pair of blue light glasses, we consulted three optometrists to learn more about what to look for.

This quantum balancing act—long debated by Einstein and Bohr—was tested without traditional “spring” components, instead relying on atomic “fuzziness” to confirm Bohr’s view: you can’t observe both ...

Sarah Tesh reviews Light: the Extraordinary Energy That Illuminates Our World by Jess Wade, illustrated by Ana Sanfelippo ...

The magnetic moment of the muon—a tiny property of a tiny particle—has long puzzled physicists. Experiments and theory haven’t quite matched up, leaving open the thrilling possibility of discovering ...

Light is all around us, yet its true nature is one of the most fascinating mysteries in science. In this video, we explore ...

Imagine two flashlights aimed at each other; do their beams collide? Nope! In everyday physics, light is too chill for drama.