Future remote sensing of exoplanets will be enhanced by a thorough
investigation of our solar system Ice Giants (Neptune-size planets). What can
the configuration of the magnetic field tell us (remotely) about the interior,
and what implications does that field have for the structure of the
magnetosphere; energy input into the atmosphere, and surface geophysics (for
example surface weathering of satellites that might harbour sub-surface
oceans). How can monitoring of auroral emission help inform future remote
observations of emission from exoplanets? Our Solar System provides the only
laboratory in which we can perform in-situ experiments to understand exoplanet
formation, dynamos, systems and magnetospheres.