Extraterrestrial (Loeb, 2021).
disputedpublicationScientific Instrumentation & Sensor Data
Avi Loeb's 2021 NYT-bestseller arguing 'Oumuamua was likely alien technology; widely criticized as failing the 'extraordinary evidence' standard.
Published Jan 2021 by Houghton Mifflin Harcourt, the book lays out Loeb's case that 'Oumuamua's anomalies are best explained by an artificial light sail. It doubles as a memoir and a critique of scientific conservatism. Reviewers (e.g., Elizabeth Kolbert) noted the strongest argument is that natural explanations are unconvincing, which falls short of the Sagan standard. A 2023 follow-up, 'Interstellar,' continued the theme.