Zhang, Z.; Nielsen, E.; Plaut, J. J.; Orosei, R.; Picardi, G.: Ionospheric corrections of MARSIS subsurface sounding signals with filters including collision frequency. Planetary and Space Science 57 (3), pp. 393 - 403 (2009)
The Uranian magnetic field is more expansive than previously thought, according to newly analyzed data from Voyager 2, making it easier to search for moons with oceans.