Interstellar Visitor 'Oumuamua is Probably Not an Alien Solar Sail

‘Oumuamua — a curious, cigar-shaped rock — was the first interstellar space rock ever discovered in our solar system, though scientists debate whether it should be classified as an asteroid or comet. Now, a new study suggests that the strange object could actually be an alien light sail, or solar-powered spacecraft.Abraham Loeb and Shmuel Bialy from the Harvard Smithsonian Center for Astrophysics (CfA) conducted the study, titled "Could Solar Radiation Pressure Explain 'Oumuamu