RETRACTED: Shocked quartz at the Younger Dryas onset (12.8 ka) supports cosmic airbursts/impacts contributing to North American megafaunal extinctions and collapse of the Clovis technocomplex - James P. Kennett; Malcolm A. LeCompte; Christopher R. Moore; Gunther Kletetschka; John R. Johnson; Wendy S. Wolbach; Siddhartha Mitra; Abigail Maiorana-Boutilier; Victor Adedeji; Marc D. Young; Timothy Witwer; Kurt Langworthy; et al. (PLoS ONE, 2025)