An improvement to decades-old LCD technology promises to turn the surface of almost anything into a full-color digital display. At the very least, it brings color-changing gadgets closer to reality.

Colour change in animals can occur over different timescales and aids communication and camouflage. Direct evidence of the associated energetic costs has been lacking, but now an experimental study of ...

Not all poisonous gases have a smell or a color. But a tiny grid of pastel- and candy-colored squares that effectively “sniffs” out hazardous chemicals in the air such as chlorosarin — a highly toxic ...