It appears in satellite pictures like great blotches of blue and green ink; swirling, spreading, sinking into parchment paper. In Australia’s arid center, those blotches represent a new inland sea, ...

Artistic rendering of what scientists believe Quaestio simpsonorum looked like. Credit: Walker Weyland. In the shadow of South Australia's largest mountain range beneath the outback soil lies a fossil ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...

In Australia’s arid center, those blotches represent a new inland sea, born from a deluge that has traveled hundreds of miles through the veins of a giant, parched continent. The rare event is now ...