Stephen Head, president of Lone Star College-North Harris, asked me not long ago what the sparrow-size, aqua-blue birds were that had shown up in his yard. He wasn't the only one who wanted to know.

Blue may be a universally beloved color for interiors, but it encompasses a vast number of different hues and tones, and that includes the highly complex, hotly-debated, and hard-to-define shade, ...

For many farms in Tennessee, tobacco is still the biggest cash crop in the field. It’s been that way for generations. But farmers are looking for alternatives that aren’t quite so difficult to grow, ...

In a recent study about ancient ancestors, archaeologists elaborated on the earliest evidence of indigo dyeing, showing that people were grinding inedible plants for special uses nearly 34,000 years ...

Take a good look at the piece of cloth pictured at the top of this story. That was made 6,000 years ago by people living on the coast of Peru. Now check out those faint blue lines running through it.