Solution characterization of buckminsterfullerene C-60 in benzene was carried out by laser light scattering. Static and dynamic light scattering (SLS and DLS) experiments were accomplished by using an incident laser beam of 790 nm wavelength, and a fiber optic probe which was coupled to a RCA C31034 photomultiplier tube sensitive to the near ir wavelength. The effective hydrodynamic radius of C-60 in benzene solution determined by using DLS was 6.4+/-0.1 Angstrom, in close agreement with the distance measured from the center of the solvated benzene to the center of the benzene-solvated C-60 (C-60.4C(6)H(6)):6.7 similar to 6.8 Angstrom as evaluated from the single crystal structure by x-ray diffraction. C-60 was found to aggregate slowly even in fairly dilute solution concentrations ranging from 0.78 to 1.39 mg/mL at temperatures 23 similar to 27 degrees C. Based on the high specific refractive index increment of C-60 in benzene, the molar mass of the C-60 aggregates could be estimated. Together with the radius of gyration, the hydrodynamic radius, and its size distribution, the kinetics of the aggregation process was investigated. The aggregation of C-60 in benzene solution was reversible, i.e., the C-60 aggregates could be dispersed simply by hand shaking the solution. The light-scattering intensity results indicated that the structure of C-60 aggregates could be described as a fractal with a dimension of 2.10 and the aggregation kinetics exhibited essentially an exponential behavior.