has confirmed the discovery of architecture older than the famous Chankillo Solar Observatory, located within the Chankillo Archaeoastronomical Complex in Casma province, Ancash region, which is redefining the origins of Andean astronomy.
The renowned Chankillo Solar Observatory was built around 250?B.C. and declared a UNESCO World Heritage Site. The newly discovered structure is much older.
The Ministry of Culture stated that "this discovery redefines the origins of Andean astronomy and significantly extends the chronology of astronomical development in the region, becoming one of the earliest records of architectural planning oriented toward the movements of the sun in the Americas, and therefore toward the observation of astronomical phenomena."
The Chankillo Executive Unit expects to complete the excavations and obtain radiocarbon dating that will determine the age of the structure.
Its director, archaeologist Ivan Ghezzi Solis, stated that this valuable archaeological discovery could redefine the understanding of astronomical development in pre-Hispanic Peru.
"There are structures that apparently had an astronomical function much earlier than Chankillo. They have an astronomical orientation and show different construction techniques, using stone, mud, and adobe," he explained.
Lunar cycle-aligned corridor
The Chankillo Executive Unit also revealed that a corridor intentionally aligned with the lunar cycle was identified at the site.
It demonstrated that the complex was used for both solar and lunar observations, and that the astronomical knowledge was more diverse and advanced than previously understood.
Likewise, the excavations uncovered a large ceremonial Patazca-style vessel, approximately one meter high, with clay figures of warriors modeled in combat positions.
Its placement in an exclusive area near the observatory highlights the existence of elites who combined astronomical knowledge with military leadership, reinforcing the political and ritual function of the Fortified Temple.
Ancient astronomical center
Lastly, the Ministry of Culture highlighted that these discoveries establish Casma as one of the most important ancient astronomical centers in the world.
The government agency continues restoration and preservation work on the Thirteen Towers and the Solar Observatory, with the aim of opening this section of the site to the public in the coming years.