NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

Milk is well-known for its calcium content, and you might be surprised by the other foods that can help you meet your needs.

Milk and Dairy Products Milk, cheese, and yogurt are among the best sources of calcium. They also provide protein, ...

Gypsum, a natural mineral made largely of calcium sulfate dihydrate, has a variety of uses dating back centuries, from lining walls to serve as a fire retardant for Mesopotamians to a plaster ...

Together, they make the substance, calcium phosphate. Sidewalk chalk is made from calcium and sulfate, which makes calcium sulfate. One of the most common chemicals connected to calcium is called ...