Now, Science reports on a person who does alien hunting for a living; The extra-terrestrial evidence doesn’t look like 'Oumuamua.
“Iridium flares are a familiar sight for sky watchers: The brilliant flashes take place when sunlight bounces off the solar panels of the 66 low-orbiting satellites in the iridium communications system. A researcher involved in the search for extraterrestrial intelligence wonders what similar flashes farther out might mean—perhaps a shiny alien artifact or spacecraft? “
Science doesn’t tell his name, but he has published in the arXiv preprint server. “Now, the aliens have kept silent: “But the fact that we haven’t seen such flashes yet suggests any alien visitors—if they are out there—are doing a good job of cleaning up after themselves.””
Clery, Daniel. 2019. If an alien ship left its trash near Earth, here’s what it might look like. Science (15 March).