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 ...

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 ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...