As commercial space makes its mark on the moon, spacecrafts’ power sources are coming under scrutiny. Solar powered spacecraft freeze upon sunset—but the problem may become obsolete in several years as more nuclear-powered alternatives come to market. Zeno Power co-founder & CEO Tyler Bernstein joins CNBC’s Morgan Brennan to discuss repurposing nuclear waste for fuel, the role of nuclear power in space and growing its client base from government agencies to the commercial sphere.