Whether you're an endurance athlete, the most valuable player of your weekend softball league, or just trying to stay ahead ...

Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that ... which generally come from trace mixtures of iron, titanium, and ...

That same chemistry on Mars sparks questions of habitability. Gale Crater’s mineral layers point to repeated water-rock interactions over time—possibly enough to support life’s origin or ...