A small robot is helping archaeologists discover the secrets of a mysterious ancient society in Mexico.
Tlaloc II-TC, named after Mexico's ancient god of rain, is on a mission to explore narrow tunnels under an ancient pyramid, and archaeologists reported a surprising find on Wednesday.
The robot found three possible burial chambers under a temple in Mexico's pre-Hispanic city of Teotihuacan and archaeologists hoped that it would reveal secrets about funeral rituals at the site.
The ancient city is known for its majestic pyramids of the sun and the moon, but little is known about the people who inhabited the site.
Teotihuacan, whose name means City of Gods, had long been abandoned when Aztecs arrived in the area in the 1300s.
Al Jazeera's Adam Raney reports from Teotihuacan.