Earth Detecting Earth: Modern Technosignatures and a Cross-Disciplinary Science Update

To the point

A science-news hub covers multiple fields and highlights a study led by Macy Huston and Sofia Sheikh that reframes SETI as Earth detecting Earth, showing that present instruments could detect Earth's technosignatures—from radio emissions of planetary radar up to about 12,000 light-years away to atmospheric NO2 signatures up to 5.7 light-years—and that future telescopes could uncover new technosignatures, while also presenting a wide range of other science headlines.