Computational Fluid Dynamics. Those words are enough to strike fear into the heart of many an undergraduate engineer. Modeling how liquids move through a system is mathematically challenging, but in many cases, absolutely vital to understanding how those systems work. Computational Fluid Dynamics (more commonly called CFD) is our best effort at understanding those complex systems. A new paper from researchers at the University of Texas at El Paso (UTEP) applies those mathematical models to an area critical for the upcoming era of space exploration - propellant production from in-situ resources.