Drawing from recent theoretical trends in new materialisms, biopolitics, and posthumanism, this book traces for the first time the intellectual constellation of biocosmism or biocosmic thought: the study of universal life understood as the vital vibrancy that animates everything in the cosmos from inorganic matter to living organisms to outer space. It combines both analysis of unexplored areas--such as Alfonso L. Herrera's plasmogeny--and innovative readings of canonical texts like Vasconcelos's La raza cósmica to examine how biocosmism produced a wide array of utopian projects and theorizations that continue to challenge anthropocentric, biopolitical frameworks.