The speed of light in a vacuum, clocking in at a showy 299,792,458 meters per second (98,3571,056 feet per second), plays a pretty darn important role in the laws of physics as we understand them ...

This film demonstrates the measurement of the speed of light in both air and water using experimental setups. The first experiment involves measuring the time it takes for light to travel a known ...

Cosmic speed limits can be a major inconvenience but they've rarely stopped science fiction in its tracks.

Scientists have demonstrated how to manipulate light by using time-varying media in the form of specialized nanomaterials.

Although they travel at the fastest possible speed (the speed of light,) they take a while to get here. The universe is big, so the news is delayed by the vast gulfs of space it has to cross to ...

Majumdar and Heide's research prototype uses optics for computing, significantly reducing power consumption and enabling the camera to identify objects at the speed of light. Their device also ...

Taara is a silicon photonic chip, which is a technical way of saying it transmits data through the air using beams of light. The original version of Taara worked, but it had limitations — namely ...

Researchers at Heriot-Watt University have made a discovery that could pave the way for a transformative era in photonic ...

A new method for manufacturing lightsails that can reach up 20% of the speed of light is making the technology look more ...