The past has never been more visible. While ancient ruins crumble under the weight of time, weather, and human activity, a ...

Stone tools reveal that the First Americans followed a coastal route from East Asia, linking both sides of the Pacific during the Ice Age.

The Stone Demonstrator produces only 6,443kg of CO2 – less than 3% of the others. The stone is cut from quarries and in this ...

Premieres Wednesday, Oct. 22, 2025 at 9 p.m. on KPBS TV / KPBS+. Deep in the Arabian Desert lie thousands of enigmatic stone megastructures whose true form is visible only from the sky. Follow ...

A huge stash of reddish minerals from a cave in Ethiopia shows how Stone Age people gradually adapted their technologies and practices over a 4500-year period. “It’s one of the rare sites where we can ...

This ‘NOVA’ installment explores the possible purposes of strange stone formations found in the Arabian Peninsula.

A team of researchers has uncovered extensive remains of a semi-submerged ancient settlement along the northern coast of ...

Archaeologists have discovered dozens of ancient "stone grenades" along the iconic Great Wall of China, according to a report. Researchers made the find in the ruins of a building located in a section ...