Rhea
Saturn's second-largest moon, heavily cratered and icy.
About
Rhea is the second-largest moon of Saturn and the ninth-largest moon in the solar system. It is heavily cratered and composed primarily of water ice with a small rocky core.
Properties
Notable Facts
Rhea is the second-largest moon of Saturn after Titan
It may have a tenuous ring system of its own, which would be unique among moons
Other Moons of Saturn
Titan
Saturn's largest moon with a thick atmosphere and liquid methane lakes on its surface.
5,149.5 km
Diameter
15.9 d
Orbit
1655
Discovered
Enceladus
Saturn moon with water geysers erupting from a subsurface ocean.
504.2 km
Diameter
1.4 d
Orbit
1789
Discovered
Mimas
Saturn's 'Death Star' moon with a giant impact crater.
396.4 km
Diameter
0.9 d
Orbit
1789
Discovered
Tethys
An icy Saturn moon with a massive impact crater and vast canyon system.
1,062 km
Diameter
1.9 d
Orbit
1684
Discovered