Amalthea
Jupiter's largest inner moon, reddish in color.
About
Amalthea is the third moon of Jupiter in order of distance and the largest of the inner moons. It is reddish in color, possibly from sulfur originating from Io.
Properties
Notable Facts
Amalthea gives off more heat than it receives from the Sun
Other Moons of Jupiter

Io
The most volcanically active body in the solar system and innermost Galilean moon.
3,643.2 km
Diameter
1.8 d
Orbit
1610
Discovered

Europa
Jupiter moon with a subsurface ocean considered a prime candidate for extraterrestrial life.
3,121.6 km
Diameter
3.6 d
Orbit
1610
Discovered

Ganymede
The largest moon in the solar system, bigger than Mercury, with its own magnetic field.
5,268.2 km
Diameter
7.2 d
Orbit
1610
Discovered

Callisto
Jupiter's second-largest moon with the most cratered surface in the solar system.
4,820.6 km
Diameter
16.7 d
Orbit
1610
Discovered