Harvard astrophysicist Avi Loeb has made a shocking claim about interstellar object 3I/ATLAS: it might not be a comet at all. After analyzing new Hubble images, Loeb argues the glow around ATLAS isn’t reflected sunlight—it’s nuclear power.
Instead of a tail of evaporating ice, Hubble captured a strange forward-facing halo, a beacon-like glow that fades sharply in ways no natural comet should. Loeb calculates the light output at 10 gigawatts—equal to ten nuclear power plants running at full capacity. Small enough to suggest the object is under 100 meters wide, yet bright enough to imply an internal reactor.
In this video, we break down the evidence, Loeb’s controversial nuclear-probe theory, and what it could mean if 3I/ATLAS is not a comet, but an alien machine deliberately flying through our solar system. Could it be reconnaissance—scouting Earth before something larger arrives?
