From buoyant tourist playgrounds to pools so caustic they can strip flesh, the world’s saltiest lakes form a spectrum that ...

Parts of ancient Earth may have formed continents and recycled crust through subduction far earlier than previously thought.

The continent-sized blobs are much hotter than the lower mantle, creating a significant temperature gradient in the rocky ...

The current image of Mars as an arid and hostile desert contrasts sharply with the history revealed by its surface. Channels, minerals altered by water, and other geological traces indicate that the ...

In South Africa, paleontology has been dominated by white people. Lazarus Kgasi is changing that dynamic — and coloring in the picture of the world our distant ancestors once inhabited.