Colonizing Mars has gone from the speculative fiction section of the bookstore right into the halls of Congress. Entrepreneurs led by Elon Musk have made “Occupy Mars” a tagline, and companies the Earth over are exploring the logistics of settling humans across the Moon and Mars. But what’s the true viability of a Mars settlement plan? Do we have the technology and legal systems in place to make this one-time fiction a reality? Popular cartoonist and author, Zach Weinersmith, wrote “A City On Mars” alongside his wife Kelly Weinersmith to explore that very question. Starting with an optimistic lens, they eventually conceded in the book that the project is one of extraordinary difficulty and are pessimistic at its chances. “A City On Mars” won a slew of best-of awards in 2023 for its delightfully engaging and humorous breakdown of complex physical and biological topics. In this first part of a two-part series, host Danny Crichton and Lux’s scientist in residence Sam Arbesman discuss with Zach the biological and psychological challenges of inter-planetary settlement and why every astronaut lies about their health in outer space. We also explore the challenges of reproduction in space, and what a second generation of settlers might have to endure in the far reaches of our solar system. Music composed by ⁠https://www.georgeko.co/⁠ "Securities" is produced and edited