“If you wanted to take a picture of the rocket as it flew past, you would have to take into account that the light from ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

Fast-moving objects don’t always look the way you’d expect. When something travels near the speed of light, strange things happen—not just to time and space, but also to how the object appears. For ...

The startup Reflect Orbital aims to keep solar farms running at night by reflecting sunlight from space and has sparked ...

White light interferometry (WLI) is a contact-free optical method for measuring surface height. It uses the phase difference between the light reflected off a reference mirror and the target sample to ...

Forward-looking: Researchers at the Beijing Institute of Technology have developed a microphone that doesn't detect air vibrations like traditional models. Instead, it captures light reflected from ...