They say the eyes are "the window to the soul" and there's certainly much to be told about the enigmatic complexity of their varied colors. Dr. Rupa Wong, a board-certified ophthalmologist who owns ...

The new color, "olo," is a hyper-saturated version of blue-green Getty Scientists conducting targeted retinal stimulation claim to have discovered a new color. In a study published in Science Advances ...

Voyager 2's image of Neptune released shortly after the flyby in 1989 (left) with the newly reprocessed version in true colour (right). A new study suggests that Neptune and Uranus are a similar shade ...

A large swath of Earth’s oceans changed color over the past 20 years — and human activity is suspected to have caused it, a new study reports. That deep blue color depicted so richly in postcards is ...