A weathered sign in the Minnesota River Valley proudly proclaims: “World’s Oldest Rock.” Erected in 1975, it marks a 3.8-billion-year-old gneiss — or so scientists thought.

How core-mantle differentiation influenced the distribution of volatile elements on Earth. Imagine Earth's history as a ...

The Moon’s surface is covered by impact craters, ranging from microscopic pits to massive basins over 1,000 kilometres across ...

UCSB Physics Professor Roger Freedman held our attention three years ago as he explained the wonders and understanding that ...

Rather than a volcanic winter, the Toba eruption 74,000 years ago resulted in several years of warm and dry weather, ...

Rocks from Greenland found on Iceland's west coast could link the late Roman Empire's fall to a spell of sudden climate ...