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 ...

BUFFALO, N.Y. — A sapphire-colored dye called methylene blue is a common ingredient in wastewater from textile mills. But University at Buffalo scientists think it may be possible to give this ...

Previously, the oldest sample of blue-dyed fabric dated to around 4,400 years ago in Egypt, with the oldest written references to blue dye going back to around 5,000 years ago in the Middle East ...

Archaeologists at a Bronze Age site in Turkey unearthed two ancient burnt textiles: a blue knitted fabric and a woven fragment, photos show. Photo from the Beycesultan archive via Maner, Abay ...

Methylene blue is a common ingredient in wastewater from textile mills. But scientists think it may be possible to give this industrial pollutant a second life. In a study, they show that the dye ...