Harvard physicist says mysterious interstellar object could be nuclear-powered spaceship

According to the article, Harvard physicist Avi Loeb has proposed that the interstellar object 3I/ATLAS, also known as 'Oumuamua, could be a nuclear-powered spaceship. Loeb's claim is based on the object's unexpected frontal glow, which he says cannot be explained by sunlight reflection or standard cometary outgassing. The article suggests that Loeb's hypothesis challenges the conventional scientific view that 'Oumuamua is a natural celestial object, such as a comet or asteroid. Instead, Loeb believes the object's unusual characteristics could indicate it is an artificial, extraterrestrial spacecraft. While Loeb's theory is speculative, the article notes that it has sparked scientific debate and discussion about the potential existence of advanced alien civilizations and the possibility of interstellar exploration. However, the article does not provide any conclusive evidence to support Loeb's claim, and it remains a controversial and unproven hypothesis within the scientific community.