Magnetic fields on a wide range of scales in star-forming galaxies
  A key ingredient in the evolution of galaxies is the star formation cycle.
Recent progress in the study of magnetic fields is revealing the close
connection between star formation and its effect on the small-scale structure
in the magnetized interstellar medium (ISM). In this contribution we describe
how the modern generation of radio telescopes is being used to probe the
physics of the ISM through sensitive multiwavelength surveys of gas and
magnetic fields, from the inner star forming disk and outward into the galaxy
outskirts where large-scale magnetic fields may also play a key role. We
highlight unique pioneering efforts towards performing and scientifically
exploiting large-scale surveys of the type that the SKA will undertake
routinely. Looking to the future, we describe plans for using the Square
Kilometre Array (SKA) and its pathfinders to gain important new insights into
the cosmic history of galaxy evolution.
