Your AI article mixed up classifications. 2025 PN7 was never classified as a comet. It was just mentioned in several different articles that were written about comets as well. The 2025 PN7 does not fit a comet classification at all. This just sticks out in this article as factually incorrect even if it is not the main focus of it.
Could we please stop referring to any object in space we don't have details on as "mysterious"? "Mysterious" carries a connotation of "unusual" or having "unexpected or impossible properties" and none of these objects qualify.
The universe is littered with chunks of rocks and ice. Our solar system has an entire belt of them. It would ne nearly impossible to track every one. Heck, we can't even do that with the satellites WE toss into space.
While we're at it, maybe drop the "celestial"? Technically it's correct, but again, it's overselling the object because the word is uncommon in use.
An astronomer from Harvard recently spoke to define the origin of the mysterious object in orbit around the Earth. But it will be necessary to conduct other studies to have a definitive answer.