Recently unearthed glass fragments in Brazil testify to a major event that occurred several million years ago. Called tektites, these fragments form when an object from space strikes the Earth ...

Aden Kahr Humans have long been fascinated by crystals. Archaeological evidence suggests our ancestors have treasured small ...

Declassified files reveal a 1954 RAAF UFO encounter where radar tracked a mysterious circular object flying 3,600 mph over ...

They gave quartz, calcite and other types of crystals to chimpanzees in a rehabilitation center. The apes responded with great interest, and the researchers ended up needing to trade large amounts of ...