Avi Loeb publishes 'Extraterrestrial' arguing 'Oumuamua may be alien technology
- When
- Where
- Cambridge, MA
- Sources
- 2 public sources
Harvard astronomer Avi Loeb's book argued that the interstellar object 'Oumuamua could be an artifact of another civilization. Reviewers called it provocative, but many scientists were unconvinced, noting the object can no longer be observed to test the idea.