the images were revealed as part of the first colour map of ceres , showing variations in surface materials , and revealing the diverse processes that helped shape it .
the latest images are the closest taken yet , and suggest that the icy body was likely once fully active .
images taken using blue -lrb- 440 nanometers -rrb- , green -lrb- 550 nanometers -rrb- and infrared -lrb- 920 nanometers -rrb- filters were combined to create the map .