Miranda size and scale context

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. Read its scale context, comparisons, and journey links on the canonical object page.

EnceladusIcy ocean moon·500 km

MirandaIcy moon·500 km

CeresDwarf planet·940 km

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Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

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Planets of the Solar System Stars of the Universe Black holes Subatomic scale

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Between the smallest and the largest, perspective is everything.

About

Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.

Guides turn parts of that scale into curated essays, while focused views let you explore the same range through specific groups of objects.

Editorial

Solar System Planets From Electron to Atoms Stars To Scale Birth And Death Of Stars Black Holes To Scale

Views

Planets of the Solar System Stars of the Universe Black holes Subatomic scale

Open Scale of Space Browse all comparisons

Moons

Enceladus

Enceladus is a small icy moon of Saturn whose south polar fractures spray water vapor and ice particles into space. Cassini connected those plumes to a global salty ocean beneath the crust, making Enceladus one of the Solar System's clearest ocean-world targets.

Scale fact500 kmdiameter

Object class: Icy ocean moon
Mass: ~0.000018 Earth masses
Host: Saturn
Estimated age: ~4.5 billion years
Composition: Water ice, silicate rock, global salty ocean
Temperature: ~72 K surface

Moons

Miranda

Scale fact500 kmdiameter

Object class: Icy moon
Host: Uranus
Composition: Water ice and silicate rock

Dwarf planets

Ceres

Ceres is the largest object in the asteroid belt and the smallest recognized dwarf planet. NASA’s Dawn mission showed that its brightest spots are salt deposits left by briny water rising from below, revealing Ceres as a surprisingly active water-rich world.

Scale fact940 kmmean diameter

Object class: Dwarf planet
Mass: ~0.00016 Earth masses
Host: Sun
Estimated age: ~4.56 billion years
Composition: Rock and water ice
Temperature: ~167 K mean surface