In the summer of 2024, the researchers hit the road, chasing storms from Florida to Pennsylvania. Finally, they got lucky: While camped out during a thunderstorm in Pembroke, North Carolina, they ...

The new method, which uses quantum dots, performs as well as or better than current infrared light sources while being much ...

Not only do our bodies emit heat as a light we can’t see, a number of cellular reactions related to stress may generate photons of light in a visible part of the spectrum. Weirder still, this ...

You’ve probably seen or heard at least once in your lifetime about fireflies – the famous light-emitting insects! They form the Lampyridae family and are sometimes called glowworms or lightning bugs.

A team of researchers has developed new LEDs which emit light simultaneously in two different wavelength ranges, for a simpler and more comprehensive way to monitor the freshness of fruit and ...

This ETH Zurich logo consists of 2,800 nano light-emitting diodes and, at a height of 20 micrometres, matches the size of a human cell. A single pixel measures around 0.2 micrometres (200 nanometres).

Human bodies are not quite as dark as they look. A growing body of research suggests that living tissue constantly releases an ultraweak glow, a stream of photons that appears to switch off when life ...