A Mysterious 'Oumuamua Object Still Baffles Scientists 3 Years After Its Discovery A strange, cigar-shaped object hurtling through space has left astronomers and scientists scratching their heads since its detection in 2017. Dubbed 'Oumuamua, the enigmatic entity has been the subject of intense speculation and debate, with some theories suggesting it may be an alien spacecraft or a fragment of a disintegrated star. Despite numerous studies and observations, the true nature of 'Oumuamua remains a mystery, and researchers continue to grapple with the implications of its discovery. As the third anniversary of its detection approaches, experts are revisiting the puzzle that 'Oumuamua poses to our understanding of the universe.