If you’ve marveled at the bright red, orange, yellow, and green hues of bell peppers in the grocery store, then you’ve probably noticed that their cost differs based on their shade. Why are different ...

Some potential contenders were especially vivid. Production and costume designers explain the conundrums they faced and their surprising solutions. By Sarah Bahr Fire-engine red. Egg-yolk yellow.

When marine scientists gave Sydney Harbor seawalls a colorful glow up, they discovered it boosted marine biodiversity along our increasingly urbanized, concrete-dominated shorelines. Their findings ...