The 67,800-year-old hand stencil looks like a claw—and provides new clues about early human cognition and the migration to ...

A Purple Star Sapphire weighing 3,563 carats which is claimed to be the world’s biggest of its kind was unveiled on Saturday ...

This experiment documents my attempt to recreate the world’s rarest blue paint directly from rocks, inspired by ancient ...

Despite their sturdy provenance in the earth's mantle, great sapphires are a fragile commodity. Here, Sri Lanka's newest ...

A rare blue diamond was discovered at South Africa’s Cullinan Mine, drawing global attention and highlighting the country’s ...

A Purple Star Sapphire weighing 3,563 carats which is claimed to be the world’s biggest of its kind was unveiled on Saturday ...

This culturally significant property, within the Procuratie Vecchie building, comes with support for future residential use—and one of the finest views in Venice.

An unexpected Ohio landmark, this castle captures the spirit of medieval history in a way that feels subtle, grounded, and ...

Greenland has the eighth-largest rare earth reserves in the world at 1.5 million metric tons, according to 2024 data from the ...