Alien probe has visited our solar system Oumuamua, a strange object that passed through the solar system in 2017, could be considered a plausible candidate for artificial origin, experts said. A sensational statement was made by Amir Siraj, who, along with another professor of physics from Harvard, Avi Loeb, wrote an article (https://bit.ly/3qLV8Td), a text that has just been accepted for publication in the journal New Astronomy. Oumuamua was spotted by Robert Verick on October 19, 2017 through a telescope at the Haleakala Observatory in Hawaii. Since then, the scientific community has not abated controversy about what Oumuamua is. Researchers pay special attention to its specific flattened shape, reminiscent of a pancake. Professor Loeb has sparked fierce controversy over his speculation that it is an alien probe powered by solar sail technology. Many of his colleagues are extremely skeptical, and two studies published in March showed that it could have been a large chunk of nitrogen ice from an exoplanet like Pluto that broke away millions of years ago. But Amir Siraj, director of interstellar research at the Harvard Galileo Project, is systematically researching evidence for extraterrestrial technological artifacts and believes the latest study he co-authored with Professor Loeb refutes that fact. Loeb said that they do not make unambiguous conclusions: "We do not know what Oumuamua is. We just know that it is not nitrogen, because the amount of resources required for its formation is unrealistic," the researcher concluded.