Far beneath the waves of the southwest Pacific, scientists have finished charting a landmass so large and so coherent that it now stands beside Africa, Asia and the rest as a full-fledged continent.

Far beneath the South Pacific, a continent the size of India has finally stepped out of the cartographic shadows. After centuries of speculation and decades of targeted surveys, scientists have now ...

They're in the headlines every week—critical minerals like lithium, cobalt, nickel, graphite and the rare earth elements essential for high-technology and national security applications. Scientists at ...