Crystal jellyfish have an eerie beauty: thanks to a natural protein, they emit a faint green glow. For decades, researchers have used that green fluorescent protein and similar molecules to light up ...

Celebrity-backed devices promise meditative ‘sober trips’. Researchers are studying how rhythmic light reshapes visual experience and mood.

A soft robot powered by light jumps 188 times without electronics, pointing to new mechanical intelligence. An insect-scale robot that jumps using only light has completed 188 continuous leaps without ...