A rare lunar meteorite found in Africa sheds new light on hidden volcanic processes that shaped the Moon long after its surface was thought to have cooled. A 2.35-billion-year-old meteorite with a ...

On Wednesday, Sotheby’s will auction off a chunk of rock believed to have originated on Mars for an anticipated two to four ...

The origins of plate tectonics on Earth are hotly debated, but evidence from Australia now shows that parts of the crust ...

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico ...

Is Arizona's most beautiful place an iconic red rock butte, a blue-green waterfall or an otherworldly cave formation? Vote in our stunning views poll.