Henan Province Cave

What the Show Claims

• ›Ancient Aliens claims that grooved disks found in a cave in China represent mysterious ancient devices that may evidence extraterrestrial contact. The show suggests these artifacts could be evidence of alien visitation to ancient China.

What Archaeology Says

The Henan province has numerous archaeological cave sites with Neolithic artifacts. Grooved stone disks have been found at various sites and are believed to be tools or ceremonial objects used by ancient Chinese cultures.