The Economic Times

Starting 1996, surprising planetary system had close encounters with NASAs Galileo spacecraft, recent study claims it may resemble Earth in certain qualities

Nearly three decades after Galileo first revealed Ganymede's intrinsic magnetic field, the giant moon of Jupiter remains one of the Solar System's most compelling destinations. Future observations could determine just how closely its interior resembles the processes operating inside Earthand how radically different two worlds can be while still sharing some remarkable physical characteristics.