Pushing the limits of structured light, applied physicists report a new type of optical vortex beam that not only twists as it travels but also changes in different parts at different rates to create ...

Space station astronaut Don Pettit has shared a clip showing streaks of light created by SpaceX's Starlink satellites.

In the future, laser beams like this could be used as a light source or to study the nature of empty space by ripping particles out of it. Try to fathom the power of 1 million nuclear power plants.

The most widely used such devices, known as Mach-Zehnder interferometers, work by splitting a beam of light down two paths ... taking up space and restricting the amount of signal that can travel ...