A provocative hypothesis by Harvard astrophysicist Professor Avi Loeb, that the interstellar object 3I/ATLAS might be an alien artificial intelligence (AI) probe, has ignited fierce debate across the scientific and public spheres. The unusual interstellar visitor, detected by the ATLAS survey telescope in Chile in July 2025, is only the third known object from beyond our solar system ever observed.
Loeb's latest speculative proposition surfaced in a blog post titled 'What if 3I/ATLAS Is AI/ATLAS?', which builds on previous speculation about the object's atypical features and considers the possibility that 3I/ATLAS could harbour an alien artificial intelligence embedded within or acting through the object itself. The claim has leaked into mainstream and fringe discourse alike, prompting sharp reactions from the scientific community.
