 While scientists require further evidence to determine the extent of a rocky core on Jupiter , its Galilean moons provide the potential opportunity for future human exploration . 
 While scientists require further evidence to determine the extent of a rocky core on Jupiter , its Galilean moons provide the potential opportunity for future human exploration . 
While scientists require further evidence to determine da extent of a rocky core on Jupiter , its Galilean moons provide tdapotential opportunity for future human exploration .