Because There are millions of craters on both these silly little chickens
IO is an active volcanic moon, and any craters are swamped with volcanic lava.Europa is an "ice" moon and any impact is swamped with melted water, which later refreezes.
Io Europa Ganymede Callisto
From Brightest to Dimmest: Ganymede Io Europa Callisto Use JPL's HORIZONS web ephemeris to look up apparent magnitudes of jovian satellites.
Io, Europa, Ganymede and Callisto are the four satellites that orbit Jupiter.
Yes, Ganymede, Jupiter's largest moon, does have craters on its surface. These craters are formed by impacts from asteroids and other celestial bodies over the moon's history. Ganymede's craters provide valuable information about the moon's geological history and the history of impacts in the Jovian system.
it is ganyme and callisto
IO is an active volcanic moon, and any craters are swamped with volcanic lava.Europa is an "ice" moon and any impact is swamped with melted water, which later refreezes.
Ganymede is the biggest moon in the solar system.
going by the magnitude scale, Callisto's the brightest. Io 5.5 Europa 5.7 Ganymede 5.1 Callisto 6.1
The neighboring moons of Callisto are Ganymede, Europa, and Ia.
Io Europa Ganymede Callisto
From Brightest to Dimmest: Ganymede Io Europa Callisto Use JPL's HORIZONS web ephemeris to look up apparent magnitudes of jovian satellites.
Orbiting planet Jupiter
JUPITER
Io, Europa, Ganymede and Callisto are the four satellites that orbit Jupiter.
Satelites of Jupiter
The four largest moons of Jupiter discovered by Galileo are Io, Europa, Ganymede, and Callisto.