The head of the largest Native American tribe has criticized NASA and commercial companies over plans to send human remains to the moon on a rocket set to blast off from the Space Coast on Monday. Representing nearly 400,000 people, Navajo Nation President Buu Nygren said he sent a letter in December to NASA and the U.S. Department of Transportation with concerns over a planned Monday launch of commercial company Astrobotic Technology’s Peregrine lunar lander because some of its payloads involve human remains headed to the moon where they would become a permanent memorial. “The placement of hu…