If an alien civilization exists and has technology similar to ours, could it detect human life on Earth from a distance? If so, how close would it need to be? Recent studies from the SETI (Search for ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...