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) …

Link About It: This Week’s Picks

Ancient artwork, life on Saturn's moon, AI innovations and more in our look around the internet

NASA Research Suggests Possible Life on Saturn’s Moon NASA has found large amounts of methane wafting within plumes from Saturn’s sixth-largest moon, Enceladus, suggesting that life may exist within its “subsurface sea.” This evidence was discovered thanks to the Cassini spacecraft, which also discovered dihydrogen and carbon dioxide molecules there. Scientists believe the methane is produced biologically, rather than through a geochemical process. Thus, Régis Ferrière, …

NASA Research Suggests Possible Life on Saturn’s Moon

NASA has found large amounts of methane wafting within plumes from Saturn’s sixth-largest moon, Enceladus, suggesting that life may exist within its “subsurface sea.” This evidence was discovered thanks to the Cassini spacecraft, which also discovered dihydrogen and carbon dioxide molecules there. Scientists believe the methane is produced biologically, rather than through a geochemical process. Thus, Régis Ferrière, an associate professor at the University of Arizona’s …