ScienceMimas: Wobbly 'Death Star' moon of Saturn is hiding a secret. What could it be? Mimas, one of the smallest moons of Saturn was observed to have a wobble twice as big for its size leading scientists to suspect that something odd may be lying beneath its icy surface.by Rhodi Lee
ScienceEuropa’s plate tectonics: Jupiter’s moon may mirror Earth more than we thoughtby Rebecca Kaplan