In a remote section of the Atacama Desert, a team from the University of Antofagasta has discovered three ceremonial mirrors crafted from polished anthracite and inlaid with lapis lazuli. Dated to approximately 500 BC, these artifacts were found in a previously unknown ceremonial plaza aligned with the summer solstice. The site is believed to be the origin point for the 'Festival of the Radiant Light,' a ritual where sunlight was reflected into darkened temple chambers to mark the start of the planting season.
The precision of the mirror alignments suggests that the early desert dwellers possessed advanced knowledge of solar mechanics and optics. Excavations also revealed charred remains of coastal plants and shells, indicating that pilgrims traveled hundreds of miles to participate in these sun-mirroring events. These findings rewrite the history of ritual complexity among pre-state societies in northern Chile, showcasing a sophisticated synthesis of astronomy and communal celebration.