3I/ATLAS arrived in 2025 with a methanol-rich composition and a coma of frozen CO2, and Sofia Sheikh's SETI team used the Allen Telescope Array to search for technosignatures across the full frequency range but found no signals, reinforc… #aliens #ca #ovni #scientificamerican #uap #ufo #ufosky #usa https://ufo-uap.news/3sNT.html