“Trash” found in a deep Mexican cave

“Trash” found in a deep Mexican cave

When you buy through our articles links, Future and its syndication partners can earn commissions. About 500 years ago, someone helped a bracelet on a stalagmit into a Mexican cave. | Credit: Katiya Pavlova While exploring the cave in the high mountains of Mexico, Spelunker thought she had found a pile of garbage from a … Read more

Hundreds of artefacts reveal where the Aztecs got their obsidian

Hundreds of artefacts reveal where the Aztecs got their obsidian

Sign up at CNN’s Wonder Theory Science Ballout. Browse the universe with news about charming discoveries, scientific achievements and more; Hundreds of Obsidian artefacts revealed where the Aztecs purchased the volcanic glass, which they used for tools, ornamental works or religious objects centuries ago – and their huge retail chains were their competitors. A new … Read more