Based on the New York Times’ bestselling series, The Expanse is set in a colonized solar system 200 years in the future. The U.N. controls Earth. Mars is an independent military power. The planets rely on the resources of the Asteroid Belt, where air and water are more precious than gold. For decades, tensions have been rising between these three places. Earth, Mars and the Belt are now on the brink of war. And all it will take is a single spark. This special discussion with the creators of The Expanse featured a select panel of scientists and engineers.