Earth-Centered, Multispectral SETI: A Multidisciplinary, Collaborative Framework for Detecting Technosignatures

To the point

Led by Dr. Sofia Sheikh, the study shows Earth could be detected by a civilization like ours if they search for a mix of technosignatures—radar emissions from Earth's facilities, atmospheric signals such as NO2, city lights, lasers, heat islands, and satellites—rather than a single clue, demonstrating an Earth-centered, multispectral SETI approach that will guide future searches as telescope sensitivity improves and acknowledging that extraterrestrial civilizations may not be Earth-like.