Ariel
The brightest and possibly most geologically active of Uranus's major moons.
About
Ariel is the fourth-largest moon of Uranus and appears to have the youngest surface among the major Uranian moons. It has extensive canyons and what appear to be flows of icy material.
Properties
Notable Facts
Ariel has the brightest and possibly youngest surface of the major Uranian moons
It has extensive canyon systems and evidence of cryovolcanism
Other Moons of Uranus
Miranda
The smallest major Uranian moon with an extremely varied and dramatic landscape.
471.6 km
Diameter
1.4 d
Orbit
1948
Discovered
Umbriel
The darkest of Uranus's major moons with ancient, heavily cratered terrain.
1,169.4 km
Diameter
4.1 d
Orbit
1851
Discovered
Titania
The largest moon of Uranus with evidence of past geological activity.
1,576.8 km
Diameter
8.7 d
Orbit
1787
Discovered
Oberon
The outermost and second-largest major moon of Uranus.
1,522.8 km
Diameter
13.5 d
Orbit
1787
Discovered