The Search for Extraterrestrial Megastructures

For the first time in their history, NASA recently began funding searches for artificial extraterrestrial megastructures. While the agency has looked for life in space for decades, it’s been via biosignatures rather than technosignatures; signs of biological processes rather than signs of technological activity, which indicate higher intelligence. As Mordechai Rorvig writes for VICE, the existing department SETI (Search for Extraterrestrial Intelligence, founded in 1984) …