8. Alien Artifacts in Our Solar System
The search for alien artifacts includes scanning for mysterious objects within our own solar system—like unexplained probes or satellites that might be evidence of extraterrestrial visitors. The unusual interstellar object ‘Oumuamua, detected in 2017, fueled speculation about its origins and whether it could be an artificial craft (Harvard Gazette). Such discoveries remind us to keep a watchful eye on our cosmic neighborhood.