Scientists have discovered the oldest direct evidence of betel nut chewing in Southeast Asia by analyzing 4,000-year-old ...

Roughly 124 miles (200 kilometers) beneath the Appalachian Mountains in New England lies the aptly named Northern Appalachian ...

Scientists studying a puzzling hot zone beneath America, called the North Atlantic Anomaly, have proposed a mantle wave ...

Rocks found along the Colorado River in Arizona turned out to contain fossilized fragments of soft-bodied creatures, ...