Motionless atoms can trap liquid metal in a strange new state that shouldn’t exist. Scientists have discovered that a liquid does not always behave the way it seems. Even when a material is fully ...

Advances in technology have reopened the debate over terraforming Mars, shifting it from an impossible dream to a long-term scientific and ethical question.

Iron is an essential trace element in biological cells. The concentration of the element and its so-called redox state—it can ...