Spacecraft Fire: Microgravity Flame Ball Simulator

Fire behaves completely differently inside an orbiting spacecraft than it does on the ground, and that difference is the entire reason space-station fire-safety procedures look the way they do. This simulator renders a single fuel source burning inside a sealed cabin and lets you dial gravity from full 1 g down to ISS freefall, adjust cabin oxygen concentration, and add forced ventilation — watching the flame morph in real time between a tall buoyant teardrop and the small, cool, nearly spherical diffusion flame that NASA's FLEX and SoFIE experiments actually measured on the International Space Station. Live readouts track flame radius, peak temperature, fuel burn rate and cabin carbon-monoxide buildup, showing why low-buoyancy flames can smoulder invisibly near their extinction limit — and why oxygen control and engineered ventilation, not gravity, are what keep a spacecraft cabin fire survivable.