A new study reveals that the Pyramid of the Moon at Teotihuacan, Mexico, marks the astronomical orientation axis of the ancient city. The research team, coordinated by Ismael Arturo Montero García, has verified that the vertices of the pyramid align to the northeast with the summer solstice sunrise and to the southwest with the winter solstice sunset. This groundbreaking discovery suggests that the Teotihuacans intentionally designed the city to highlight these significant solar events. The archaeoastronomy specialists from the University of Tepeyac (UT) and the National School of Anthropology and History (ENAH) found that on the longest day of the year, the sun rises over the Xihuingo volcano, which functioned as an observatory to calibrate the calendar, and sets behind Maninal Hill to the west, states an INAH report. This alignment indicates the Teotihuacans' advanced understanding of celestial mechanics and their integration of natural landscape features into their urban planning. The Pyramid of the Moon, located at the end of the Causeway of the Dead, served as the focal point of this astronomical axis. Read moreSection: NewsHistory & ArchaeologyAncient PlacesAmericasRead Later