Earth-like civilizations generate heat from the energy that they utilize. The thermal radiation from this heat can be a thermodynamic marker for civilizations. Here we model such planetary radiation on Earth-like planets and propose a strategy for detecting such an alien unintentional thermodynamic electromagnetic biomarker. We show that astronomical infrared (IR) civilization biomarkers may be...

Department Website: http://nelc.uchicago.edu Program of Study Majors in Near Eastern Languages and Civilizations (NELC) at the University of Chicago pursue rigorous knowledge about a region of the world that is known as “the cradle of civilization” and the home of several important religious and cultural traditions, as well as one of the most important geopolitical areas of our contemporary wor...