Harvard professor suggests alien spacecraft possibility for object 3I/ATLAS

A mysterious object, 3I/ATLAS, is approaching Earth, with a Harvard professor suggesting a 30-40% chance it's an alien spacecraft. The object, originating from another star system, is exhibiting unusual behavior, including shedding metals, which deviates from typical comet characteristics. Scientists are divided, with some dismissing the alien theory as fueling conspiracy, while others advocate for sky surveys to detect potential existential threats.