Naming rituals presided over by the goddess would ... Eclipses, the Aztec believed, threatened pregnancy. The Tzitzimitl—astral deities visible when the sun was in eclipse—were often benign ...

It was the third flat Aztec monolith to be discovered ... The newly born sun god Huitzilopochtli slew his warrior sister, the moon goddess Coyolxauhqui, and flung her to the bottom of the mountain.