Which Galilean moon surpasses the size of the planet Mercury?
Answer
Ganymede
Ganymede holds the distinction of being the largest moon in the entire Solar System. Its sheer physical scale is remarkable, as its diameter actually exceeds that of the planet Mercury. Despite being an icy and rocky satellite orbiting Jupiter, its size places it in a category usually reserved for true planets. This massive size contributes to its unique characteristics, such as its ability to generate its own magnetic field, further emphasizing its status as a world of complex geological and physical significance.
Related Questions
What initial name did Galileo assign to Jupiter's four largest satellites?What mythological figure, a lover of Jupiter, lends her name to the Galilean moon Io?What feature makes Europa a premier astrobiological target among the Galilean moons?Which physical characteristic is unique to Ganymede among the Galilean moons?What astronomical mechanism maintains Io’s intense volcanic activity through tidal flexing?What was the publication titled in which Galileo announced his discovery of Jupiter's satellites?Which moon, notable for being larger than Mercury, is characterized by a heavily cratered, ancient surface?What severe environmental hazard from Jupiter most heavily bombards Io and Europa during exploration?Which Galilean moon surpasses the size of the planet Mercury?What distinction did Galileo's observation of the four moons provide regarding the existing cosmic model?