The wall is painted with a blue pigment that chemists made for her, inspired by George Washington Carver’s patented Prussian Blue.Credit...Elias Williams for The New York Times Supported by By ...

Cells get nutrients from their environment, but where do those nutrients come from? Virtually all organic material on Earth has been produced by cells that convert energy from the Sun into energy ...

Melasma is a common skin condition that causes patches of darker skin to form, often on the face. It tends to occur in areas with more sun exposure. Melasma is not harmful, but it may affect how a ...

Hormones influence skin aging far more than previously thought, impacting wrinkles, pigment loss, and overall skin health. Researchers have identified key players, including melatonin and insulin-like ...

Blood Pigments Hemoglobin is red, hemocyanin is blue, chlorocruorin is both red and green. All are studied together because they perform the same function in rather dissimilar organisms ...