In 2006 a rock carving was identified by two astronomers which they interpretted as an ancient star explosion near the constellation Scorpius (Supernova 1066.) However, despite media reports, leading archaeoastronomers remain highly skeptical.
"Having looked at the White Tanks rock art panel, I am appalled," says Edwin C. Krupp, Director of the Griffith Observatory in Los Angeles and author of Archaeoastronomy and the Roots of Science. "Panels like this are not rare. There is no reason to link it to any supernova event. There is nothing persuasive about the imagery to support the extraordinarily detailed claim. The authors say nothing about all of the other imagery on the boulder and select two details for their discussion. These two details are in themselves dubiously interpreted."
- See more at: http://www.skyandtelescope.com/astronomy-news/did-ancient-americans-record-a-supernova
For another view, see this article from "Sky and Telescope." The actual rock is shown, and it does appear that two images on a large rock full of art were selected.
Sky and Telescope article
In addition to the cresent moon and "star" art found in Chaco Canyon, NM, (supposedly showing the 1054AD supernova) there is a similar rock art of crescent moon and star (or sun) is rock art near Lake Powel, AZ.
Something is not right. This message is just to keep things from messing up down the road