Add Yahoo as a preferred source to see more of our stories on Google. What’s your favorite color? If you answered blue, you’re in good company. Blue outranks all other color preferences worldwide by a ...

The more colorful a food, the more nutritious it probably is. For example, purple corn contains compounds associated with a reduced risk of developing diabetes and heart disease. The cobs contain the ...

In photosynthesis and organic photovoltaics, pigment molecules convert light into electrical charge. Chemists have now produced an unusual organic pigment, which is 'switched on' by an electrical ...

From crushed leeches soaked in vinegar to modern chemical compounds, fashionable humans have sought ways to dye their hair for thousands of years. It’s a messy, stinky process, which researcher ...