For more than two centuries, astronomers have treated the Sun’s spectrum as a solved problem, a textbook example of how light reveals the chemistry of the cosmos. Now a fresh look at that familiar ...

Ultraviolet (UV) light has higher energy photons than visible light and, thus, has more applications. Researchers have now developed a brilliant innovation -- a solid-state material that can stably ...

Scientists have developed an ultra-thin, paper-like LED that emits a warm, sunlike glow, promising to revolutionize how we light up our homes, devices, and workplaces. By engineering a balance of red, ...

Indoor life is comfortable for pet birds, but it comes with one big downside: most homes don’t provide the kind of light ...