Under conditions of weak convection in the liquid during metal solidification and crystal growth, large chemical inhomogeneities can occur due to insuffi-cient mixing of the melt. In this project a series of experiments with increasing melt flow, driven by thermo-capillary forces, have been performed in a Get Away Special flight. The level of convection was evaluated quanti-tatively from analysis of axial segregation profiles. As expected a significantly stronger radial segre-gation has occurred in the space grown mate-rial compared to ground based reference experiments. It was also found that there was a shift of the position of max-imum concentration when the flow was in-creased. Unexpected axial solute maxima were also revealed in the space samples. A comparison was made to numerical simulations, and good correla-tions were found to first order effects.