Judy Baca's former staff members allege she used the nonprofit art center SPARC for her personal gain, which Baca strongly ...

See how trees rose, endured and survived across 500 million years, evolving superpowers and weaponry; and shaping how we grip, stand, sleep, live.

Archaeologists have found a prehistoric human skeleton deep inside a flooded cave system on Mexico’s Caribbean coast ...

Long before Hollywood reshaped Los Angeles, the region was famous for something far less glamorous: oil. California was once ...

A layer of rock just 520 million years old sat directly on top of ancient rock dating back 1.4 to 1.8 billion years.

Ancient sea organisms survived until a sudden extinction 550 million years ago, revealing what may be the first major mass extinction.

Satellite data shows the ground is sinking beneath many of the world’s biggest river delta cities, worsening flood and sea-level rise risks.

WTOP’s Nick Iannelli explores the beginnings of modern energy in America and the 19th century, when wood, water and muscle powered the nation.

The first historically recorded pandemic is believed to have struck the walled city of Jirash, in what is now modern-day ...

The symbols, discovered on 40,000-year-old artifacts in caves in southwest Germany, may have been a precursor to the first written language ...

Imagine a country with no rivers, no freshwater lakes, and no springs. Now, pack 65,000 people onto it. Add half a million ...

When someone tells you there’s a giant hole in the ground in Florida that you should definitely visit, your first instinct is probably to check if they’ve been out in the sun too long. But Devil’s Den ...