SAN FRANCISCO — At sunrise and sunset, only ROY shows up for rainbow duty—G and BIV don’t appear for the earliest and latest color shows in the sky. Rainbows, it seems, are far more complex than the ...

Imagine you’re in IKEA, looking for a plastic kitchen stool. You find one, but—darn—it’s turquoise, which just doesn’t match your home color scheme. No problem. You tell a salesperson, who pushes a ...

The James Webb Space Telescope has captured a belching protostar in its infancy. By studying the dust grains whirling around it, astronomers hope to better understand how solar systems like our own ...

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How we interact with objects in the world often depends on what colors we perceive them to have, and on how those perceived colors accord with what we know to be the normal or 'canonical' colors of ...