Tiny extremophiles give the salty lakes their rosy hue, but over-mining and climate change are threatening their existence.

This wasn’t a one-time usage situation, either—the for thousands of years, spanning the final Middle Stone Age and the Late ...

Ochre can vary in color. According to Britannica, ochre can be a pale yellow, a deep red, gold, brown and even purple. It gets its versatile color from iron oxide. Because it is a natural clay based ...

Red ochre was even found on flint and bone fragments of Neanderthals uncovered in the Netherlands, suggesting that it has been used for artistic and ceremonial purposes for up to 200,000 years.

The colors of fall are just the best, right? From Houzz: "Fall is all about the oranges and reds and yellows, correct? Well, take a peek in the garden and on the vine, and you'll see that your ...

Created with ochre colors in shades of rust, brown, and black, the bark painting—carrying an estimate between $50,000 and $80,000—represents ceremonies that are associated with seagulls, ...

We can never know for certain what ancient Jews and Romans saw when they passed under the Arch of Titus, but thanks to technology and a team of scholars, we now have an inkling. The arch ...