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Comet 41P: Controversial Harvard astronomer is once again pointing at comets and saying "Aliens?"

The often controversial Harvard astronomer Avi Loeb, fresh from speculating whether interstellar comet 3I/ATLAS could be an ...
Wired

The Search for Alien Artifacts Is Coming Into Focus

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.