Excavations at the site uncovered 16 knives—three made from flint and 13 from obsidian—that were intended as some form of offering, researchers with the Mexican National Institute of ...

Archaeologists working in Mexico City have unearthed hundreds of obsidian artifacts dating back to pre-Columbian Mesoamerica and the Mexica Empire, according to a new study published in the journal ...

A greenish obsidian blade, believed to have been found on the Texas Panhandle, may be from the 16th-century expedition led by the Spanish explorer Francisco Vázquez de Coronado, a new study suggests.

Obsidian could be shaped into sharp tools like blades. Miniature weapons, such as this small knife, were buried as offerings at Tenochtitlán. The artifacts examined in the study were uncovered ...

Two “Four Mirrors” moths named for the transparent ovals on their wings cling to a thread, mating for hours just after emerging. Each moment is rare, delicate, and mesmerizing. (Image: AP) ...

An analysis of obsidian artifacts excavated during the 1960s at two prominent archaeological sites in southwestern Iran suggests that the networks Neolithic people formed in the region as they ...

A greenish obsidian blade, believed to have been found on the Texas Panhandle, may be from the 16th-century expedition led by the Spanish explorer Francisco Vázquez de Coronado, a new study suggests.

But the community also relied on everyday objects made of different kinds of obsidian, like blades for cutting and scraping, and thus had to establish a complex economic system that encouraged ...