Almost 13,000 years ago, a massive fragment of a comet exploded over Louisiana, turning stone into glass and potentially offering evidence for one of history's most controversial theories. New ...

Explorations of a submerged passage in the Tlayococ cave in Mexico led to an undiscovered room. Within the room, cave explorers discovered bracelets sitting atop stalagmites and other artifacts from a ...

Here’s what you’ll learn when you read this story: Explorations of a submerged passage in the Tlayococ cave in Mexico led to an undiscovered room. Within the room, cave explorers discovered bracelets ...