We present results on the cosmic evolution of the outskirts of disk galaxies. In particular we focus on galaxies with stellar disk truncations. Using UDF, GOODS and SDSS data we show how the position of the break evolves with time since z ˜ 1. Our findings agree with an evolution on the radial position of the break by a factor of 1.3 ± 0.14 in the last 8 Gyr for galaxies with similar stellar masses. We also present radial color gradients and how they evolve with time. At all redshift we find a radial inside-out bluing reaching a minimum at the position of the break radius, this minimum is followed by a reddening outwards. Our results favor a scenario where stars are formed inside the break radius and are relocated in the outskirts of galaxies through secular processes.