Lake Eyre is enormous, and unusual: it both has no outflow and is filled by water derived from rain and flooding alone.

You have probably seen the images of the surface of Mars, beamed back by NASA's rovers. What if there were a time machine ...

New research shows fossil skin can reveal color patterns in young Diplodocus, changing old ideas about sauropod appearance.

Largest deposit of pure black jade, called nephrite, is discovered in China, and it could revolutionize the world of jewelry.

Scholars will take a fresh look at the authenticity of a rock purporting to reveal the fate of the Lost Colony of Roanoke ...