Physicists from Imperial College London have achieved a groundbreaking milestone in quantum physics by reimagining the classic double-slit experiment—this time in the dimension of time. Led by ...

Ever wondered how light slows down when passing through a material? Here we explore why the answer is not that straightforward.

The speed of light is 299,792,458 meters per second and that constant tells us much about cause and effect in the universe.

Does light behave more like a particle, or like a wave? Today we know the surprising answer. Here's why it took so long to get there.

A “kugelblitz” is a black hole made of concentrated electromagnetic energy. But it’s not possible to make one, according to new calculations.

Gravity can turn itself into light, but only if space-time behaves in just the right way, a research team has found. Under normal circumstances, you cannot get something from nothing. Specifically ...

An international team of researchers have come up with a new theory that could allow for objects to go faster than the speed of light.

For the first time, scientists have observed 'negative light,' a breakthrough involving negative-frequency photons. This discovery challenges understanding of light and energy, offering potential ...