The speed of light is a fundamental constant, approximately 299,792,458 meters per second. It's the same for all observers and hasn't changed measurably over billions of years. Nothing can travel ...

If ever spotted in the emptiness of space, according to theoretical physicist Eugeny Babichev of the University of ...

Light has always been the stage on which quantum mechanics performs its strangest tricks, and the double-slit experiment is ...

For the first time, researchers transformed light into a quantum crystalline structure to create a "supersolid" that's both solid and liquid at the same time. Here’s what that means, and why it's such ...

A team of quantum physicists has taken a concept that once lived purely in equations and turned it into hardware reality, ...