We often talk about climate change, melting glaciers, or strange landforms. But we rarely think about something that’s always ...

Igneous rocks — which form as magma solidifies either deep within Earth or at the surface after a volcanic eruption, for example — contain a limited number of minerals that crystallize ...

Following a short break for the July 4th holiday, Perseverance drove westward to a site called "Westport," where the ...