Evolution of the planets of the nominal model M0 in the distance-mass-radius-time space. The radius (z-axis) at 10 Myr and5 Gyr is shown as a function of semimajor axis and mass. The color code gives the fraction of the initial H/He envelope that was evaporated. Planets that have lost all H/He are plotted in gray. The overall contraction and the growing bare core triangle is visible, extending to larger masses and distances as time goes on. The red curve indicates M_bare and R_bare at 5 Gyr as in Fig. 4.