If alien civilizations once existed, their relics could still be out there. Xenoarchaeology imagines how humans might study artifacts not of Earth but of other worlds. Drone footage captures flooding ...

First contact with alien civilizations won’t be with the beings themselves, but with their technology. By searching for these extraterrestrial artifacts, we embark on a journey through our solar ...

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 ...