28-hour search for extraterrestrial signals from TRAPPIST-1 system using Allen Telescope Array, refining future detection methods.

Scientists conducted a 28-hour search for extraterrestrial radio signals from the TRAPPIST-1 star system using the Allen Telescope Array. Despite detecting millions of potential signals, none were confirmed as non-human in origin. The study focused on planet-planet occultations, aiming to refine future detection methods. Although no evidence of alien technology was found, the research indicated progress in scanning techniques that could enhance the search for extraterrestrial communication.