Miranda

Updated

Details

Miranda is the smallest and innermost of Uranus' major moons, but Voyager 2 revealed one of the strangest surfaces in the Solar System. Its patchwork coronae, ridges, valleys, and giant fault canyons make it geologically surprising for a moon only about 500 kilometers across.

Miranda matters because it looks too small to have such an unsettled face. At about 500 kilometers across, it should be easy to imagine as a simple icy satellite. Voyager 2 showed the opposite: a patchwork world where old cratered terrain sits beside sharp-edged regions of ridges, valleys, and complex deformation.

The features that define Miranda are its coronae. NASA describes these broad collections of ridges and valleys as unique among known Solar System objects, and they make the moon look as if different terrains were fitted together imperfectly. The giant fault canyons push that contrast even further, reaching depths far beyond familiar Earth-scale canyon intuition.

That is why Miranda matters on this scale. It shows that small icy moons can hold geological surprises out of proportion to their size. Miranda is not important because it is large; it is important because it makes a modest Uranian moon look like a broken map of internal and impact-driven history.

218km
Visual creditNASA / JPL-Caltech / Kevin M. Gill / CC BY 2.0Source: Wikimedia Commons

Key facts

Category
Moons
Object class
Icy moon
Host
Uranus
Scale fact
500 kmdiameter
Composition
Water ice and silicate rock

Scale context

Where Miranda sits on the full axis

By size on the journey, Miranda sits between Enceladus and Ceres. The band below compares Miranda with nearby Icy moon objects so the size jump stays easy to read.

Shared physical scale
928km
Mimas396 km
Miranda500 km
Ariel1,160 km
Charon1,214 km

Together, these objects make the size change around Miranda easy to compare at a glance.

Sources

References for Miranda

Measurements and descriptive context are compiled by the Scale of Space team from the references below. If you find an error, please let us know.

Between the smallest and the largest, perspective is everything.

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