As companies seek to extract critical minerals used in electric vehicle batteries and other green technologies from the deep ...

This robot was hunting for rocks. A three-pronged claw descended ... enough to scupper entire companies. Nautilus Minerals sought to begin deep-sea mining work in the late 2010s.

Water is sometimes pumped into rock basins to form a salt brine ... Himalayan and sea salt contain various essential minerals, but most are only present in trace amounts, offering little health ...

Inch by inch, as massive glaciers crept over frozen land toward an ice-covered sea ... from rock formations dating to the Neoproterozoic. The team looked at zircons — crystallized minerals ...