The fabric of a dress nearly caused the fabric ... What colors do you see when you look at it? Black and blue or white and gold? "Everyone went to DEFCON 5 immediately when someone disagreed.

→Bright blue chunk found in Rome turns out to be rare 2,000-year-old material. See it Archaeologists also found five more ...

From a bee’s perspective, attractive bluish flowers are much more common. Today many blues are created with modern synthetic pigments or optical effects. The famous blue/gold dress photograph ...