Hawaii’s Exceptional Tree Program began in 1975 when the Legislature passed Act 105 to protect Hawaiʻi’s most valued trees ...

Stone tools and stone circles discovered in coastal Scotland show that prehistoric people settled farther north than anyone ...

There is a gorgeous European town that looks like it has been frozen in time and is built in a meteor crater with old buildings made from diamonds.

A Soviet-era spacecraft meant to land on Venus a half century ago is expected to plunge uncontrolled back to Earth within ...

During many of these eruptions, Hawaiian Volcano Observatory field crews documented “ooze outs” — where lava squeezes out ...

Better wood and better stoves are key components of cleaner air in a cold-weather region where atmospheric inversions trap ...

An earthen enclosure called the Octagon is drawing much-deserved attention to the state’s history-filled mounds built some 2,000 years ago by the Hopewell culture ...

One is particularly "resilient." Another has an iconic branch that dips to the ground and then soars upward, creating a "V" ...

The story of early human presence at Skye begins with a series of unexpected finds.

A Washington Post examination of videos, satellite imagery and expert analysis reconstructs how the fatal explosion at Iran’s Shahid Rajaee port unfolded.