Projections of Earth’s Technosphere: Strategies for Observing Technosignatures on Terrestrial Exoplanets

To the point

Jacob Haqq-Misra, Ravi Kopparapu, and George Profitiliotis outline a stepwise plan to detect technosignatures on terrestrial exoplanets by using ten Earth-like technosphere scenarios as analogs and pursuing a staged observing campaign—from atmospheric characterization with the Habitable Worlds Observatory to potential mid-infrared measurements with LIFE, followed by radio searches, Solar Gravitational Lens investigations, and, if feasible, an interplanetary fly-by or probe to demonstrate technology.