Abstract
If we’re not alone in the Universe, where is everyone? For decades, we've searched for and imagined forms of extraterrestrial intelligence. But what exactly are we looking for, and how do we search? Through an interdisciplinary approach that combines biology, philosophy, astrophysics, and science fiction, we will explore the potential paths that evolutionary forms might take on other celestial bodies, their possible levels of advancement, and the methods currently used to investigate their existence.