Final state of two identical, Moon-forming simulations with different values for parameters of the solid strength model. The left side shows the nominal case and is the same as the right panel of Figure 1. The right side shows the same initial conditions, but with μ_d = 0.63 and μ_i = 1.58. Colors represent material and origin body: blue for target’s mantle, purple for impactor’s mantle, red for target’s iron core, and yellow for impactor’s core. The dominance of purple illustrates the material distribution of Theia mantle material.