Dr. Brown's research interests center on observational, theoretical, and laboratory studies of planetary surfaces and surface processes. His recent work has focused on: models of processes acting on icy surfaces in the outer solar system, the surface composition and geology of Saturn's Titan, the design and construction of advanced spacecraft instrumentation, determination of the chemical and isotopic composition of icy surfaces, laboratory/theoretical studies of evaporative isotopic fractionation on comets and icy satellites and spacecraft studies of the outer solar system. Of particular interest in his research are Titan and the rest of Saturn's icy moons.