 The levels of ionizing radiation on Io, Europa and Ganymede are inimical to human life, and adequate protective measures have yet to be devised.The "Juno" New Frontiers mission to Jupiter was launched in 2011 and arrived at Jupiter in 2016.It includes a suite of instruments designed to better understand the magnetosphere, including a Magnetometer on Juno instrument as well as other devices such as a detector for Plasma and Radio fields called "Waves".