Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Hundreds of ...

Hand-carved arrowheads ... shard of obsidian found in the province was carried here. With X-ray technology, researchers can trace each piece back to its source. A new paper examining artifacts ...

had a passion for historical artifacts and recognized that the broken piece of glass-like material was likely some kind of tool or arrowhead. Erwin added the obsidian artifact to his growing ...

Over the last 11,500 years or so, the stone has been fashioned into deadly knives, razor-sharp spear points, darts for atlatls, or spear-throwers, and arrowheads. The cliff is “nationally ...

Jennifer Yeoman and Hector Lomack, a couple in Edmonton, Alberta, stumbled upon a significant find while landscaping their front yard: a 4.6-pound obsidian core, rare in a region without volcanic ...