Jarvis, M.M.JarvisSeymour, N.N.SeymourAfonso, J.J.AfonsoBest, P.P.BestBeswick, R.R.BeswickHeywood, I.I.HeywoodHuynh, M.M.HuynhMurphy, E.E.MurphyPRANDONI, ISABELLAISABELLAPRANDONISchinnerer, E.E.SchinnererSimpson, C.C.SimpsonVaccari, M.M.VaccariWhite, S.S.White2020-04-152020-04-152015978-1-909204-70-61824-8039http://hdl.handle.net/20.500.12386/24054Radio wavelengths offer the unique possibility of tracing the total star-formation rate in galaxies, both obscured and unobscured. As such, they may provide the most robust measurement of the star-formation history of the Universe. In this chapter we highlight the constraints that the SKA can place on the evolution of the star-formation history of the Universe, the survey area required to overcome sample variance, the spatial resolution requirements, along with the multi-wavelength ancillary data that will play a major role in maximising the scientific promise of the SKA. The required combination of depth and resolution means that a survey to trace the star formation in the Universe should be carried out with a facility that has a resolution of at least ~0.5arcsec, with high sensitivity at < 1 GHz. We also suggest a strategy that will enable new parameter space to be explored as the SKA expands over the coming decade.ELETTRONICOenConference paperhttps://pos.sissa.it/215/068/2015aska.confE..68JFIS/05 - ASTRONOMIA E ASTROFISICA