Did you know that until the early twentieth century, artificial light sources only served the purpose of illuminating our surroundings? Since then, significant changes have taken place. Light is now ...

How dark is the night sky where you live? If you’re in an urban area, the answer will likely be “not dark at all”. The pervasiveness of artificial light – be it in the form of streetlamps, billboards, ...

In nature, many organisms glow in the dark, including lightning bugs, some squid and jellyfish, using light to attract a mate or lure prey. Now, researchers have engineered glowing succulents, plants ...