NASA's nickname for the distant Kuiper Belt object 2014 MU69, Ultima Thule, has been more than a little contentious. While it has innocuous meanings, Ultima Thule is also the term white supremacists use to refer to a mythical homeland. The agency is sidestepping that controversy, however. It just officially named the object Arrokoth, or "sky" in the Powhatan/Algonquian language. NASA received the consent of the Powhatan tribe before making the change.