This document discusses depictions of Halley's Comet in Native American rock art from the southwestern United States. It describes how ancestral Pueblo peoples who lived in New Mexico between the 13th and 15th centuries likely witnessed the appearances of Halley's Comet in 1066, 1301, and 1456. Their rock art features symbols that evolved from simple stars and birds into anthropomorphized figures wearing star headdresses, reflecting their observations and interpretations of the comet. This suggests Halley's Comet was an important astronomical phenomenon in their culture that influenced their artistic traditions.