“Before We Knew Mars, We Made It a Myth” is a focused episode from Mars in Fiction: How a Planet Became a Mirror, built around one central question: why did Mars become such a powerful setting for fiction long before we truly understood the planet itself? The episode explores the early literary rise of Mars, especially the 19th-century moment when the Red Planet began to overtake the Moon in the popular imagination. At a time when astronomy could reveal just enough to make Mars feel near, but not enough to make it known, the planet became an ideal canvas for speculation. Writers filled that uncertainty with cities, civilizations, utopias, warnings, and impossible dreams. Rather than offering a simple timeline of Mars in fiction, this episode treats the planet’s literary rise as an origin story. Mars became powerful not because people knew it well, but because they did not. Its distance, redness, seasonal changes, and half-seen surface features gave fiction room to breathe. The less certain the science was, the more alive the stories became. Listeners can expect a clear setup, a shaped narrative turn, and a reflective ending that connects this episode back to the larger theme of the series: Mars as a mirror. Across centuries, every new scientific claim reshaped the stories people told about the Red Planet, from utopian worlds and imagined civilizations to the dread and wonder of alien invasion fiction. Mars in Fiction: How a Planet Became a Mirror is a two-part documentary mini-series tracing how Mars moved from distant astronomical curiosity to one of fiction’s most powerful worlds. Cinematic, historically grounded, and driven by the strange partnership between science and imagination, the series explores how humanity kept rewriting Mars long before we ever truly saw it clearly.