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 ...

Avi Loeb is looking for alien tech on Earth, drawing ire from his colleagues. The Harvard professor's research is bankrolled by tech tycoons "pissed off" at academia's dogma. Some critics say Loeb is ...