ASTR 419: Astrobiology: Extreme Environments and Life Adaptations is an advanced 400-level course that delves into the fascinating field of astrobiology with a specific focus on extreme environments and the remarkable adaptations of life to thrive under harsh conditions. This course is designed for students who have a strong foundation in astrobiology and seek to explore the intricacies of life’s survival strategies in extreme habitats. Throughout this rigorous course, students will examine the diversity of extremophiles on Earth and extrapolate their potential implications for the search for life beyond our planet. The course will also explore the various extreme environments found in our solar system and beyond, and how these environments challenge our understanding of habitability and the limits of life.