This episode features Alex Morgan, a materials scientist and fire safety expert, discussing how material flammability and fire hardening are engineered across civilian and military aircraft and spacecraft, from aging aluminum airframes to modern composite structures and unmanned systems. The conversation dives into challenges like lithium-ion battery fires, high-oxygen spacecraft environments, reentry heat shields, and evolving regulations, highlighting how fire science adapts to new aerospace technologies to protect people, payloads, and missions.