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) …

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 …

Link About It: This Week’s Picks

An alien probe, ancient bathroom humor, the mistaken history of chocolate and more

Ancient Bathroom Humor Discovered Uncovered this week in Turkey, inside what was once a Roman latrine, are a bunch of dirty jokes that date back to the second century. Two mosaics depict well-known Greek and Roman characters, Narcissus and Ganymede—only the scenes are a little different than the myths we know. In one, Narcissus is staring down at his penis, obsessed; in the other, Ganymede (who was …