Every few years, a new “mystery metal” surfaces and the internet races to declare it proof that we are not alone. Shiny shards, polished spheres, and desert monoliths are quickly framed as alien ...

Should we prepare for alien invasion? That question has gained new urgency with the appearance of interstellar visitor 3I/ATLAS. This object is not bound to our Sun. It arrived from beyond our solar ...

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...