Explore a provocative TED talk where journalist Stephen Petranek argues that humans will colonize Mars within 20 years. Discover the fascinating details of how we'll adapt to life on the Red Planet, from creating oxygen to growing food. Learn why Petranek believes human survival is guaranteed regardless of Earth's fate, and how becoming a spacefaring species will shape our future. Gain insights into the technological advancements and challenges involved in making Mars our next home, and consider the implications for humanity's long-term survival and evolution.