Earth’s deep past leaves plenty of unanswered questions. None currently proves an alien visit, but scientists know the ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Senior figures from inside the U.S. military and intelligence world are now openly suggesting that the government has encountered technology and even “biologics” that are not human, even as official ...

Artificial intelligence may have a far stranger origin than Silicon Valley's technological revolution suggests, according to quantum computing entrepreneur Deep Prasad, who has raised the possibility ...

Humans have created countless inventions that shape our lives in amazing ways. Some are practical, some are revolutionary, and some are simply fascinating. But if aliens suddenly appeared, which ...