ISOS

"In the past decade, astronomers have witnessed three interstellar objects (ISOs) passing through the Solar System. This included the enigmatic 'Oumuamua in 2017, the interstellar comet 2I/Borisov in 2019, and 3I/ATLAS in July 2025."https://www.universetoday.com/articles/where-are-the-interstellar-objects-1ioumuamua-2iborisov-and-3iatlas-headed-now